Curves and Surfaces 2026>

Detailed program

Monday, June 8, 2026

Time Event (+)
07:30 - 08:45 Welcome of participants - Registration  
08:45 - 09:00 Welcoming remarks (Auditorium Chateaubriand)  
09:00 - 10:00 Plenary talk (Auditorium Chateaubriand) - Chair: Gabriel Peyré (+)  
09:00 - 10:00 › Imaging, Inverse Problems, and AI: Where Does the Mathematics Go? - Carola-Bibiane Schönlieb
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10:00 - 10:30 Coffee break (Rotonde Jacques Cartier)  
10:30 - 12:35 MS: Polynomial optimisation (Auditorium Chateaubriand) - Chair: Didier Henrion (+)  
10:30 - 10:55 › Sums-of-squares Polyconvexity - Ajay Murali
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10:55 - 11:20 › Quadratically regularized Wasserstein barycenters for Lipschitz-resilient aggregation of measures - Matteo Tacchi-Bénard
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11:20 - 11:45 › Asymmetric conformal prediction with penalized kernelsum-of-squares - Louis Allain
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11:45 - 12:10 › Positivity Certificates for Polynomials over D-finite Solutions - Alaa Ibrahim
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12:10 - 11:45 › Taming the Curse of Dimensionality in Polynomial Optimization with Tensor Structure - Didier Henrion
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10:30 - 12:35 MS: Computational Design and Fabrication of Curves and Surfaces (Grand Large Est) - Chair: Mélina Skouras (+)  
10:30 - 10:55 › Yes–No Questions in Elastic Curve Design - Christian Hafner
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10:55 - 11:20 › Fabrication-aware Design and Optimization of Cone-Nets - Mark Pauly
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11:20 - 11:45 › Geometric constraints for uniformly deployable hinged kirigami structures - Jing Ren
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11:45 - 12:10 › Folding, Bending, Stretching in Architecture - Florian Rist
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12:10 - 12:35 › New geometrical properties to make gridshells more affordable and versatile - Xavier Tellier
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10:30 - 12:35 CS: Approximation theory 1 (Grand Large Ouest) - Chair: Jonathan Siegel (+)  
10:30 - 10:55 › Analysing the Manifold Moving Least Squares under Stochastic Sampling Model - Shir Moshe (Tapiro)
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10:55 - 11:20 › Approximation by sampling operators and special measures of smoothness in Banach lattices - Yurii Kolomoitsev
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11:20 - 11:45 › Bounds on the determinant of an exponential matrix - Michael Floater
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11:45 - 12:10 › Structural limitations of M-term approximation - Dennis Elbrächter
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12:10 - 12:35 › Regularization models for planar offset curves and trajectory recognition - Rosanna Campagna
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10:30 - 12:35 CS: Inverse problems (Bouvet) - Chair: Carola-Bibiane Schönlieb (+)  
10:30 - 10:55 › Data assimilation in the space of curves: application to wildfire monitoring - Gaël Le Ruz
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10:55 - 11:20 › Dynamic inverse problems with temporal discontinuities in the Wasserstein-1 space - Julius Lohmann
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11:20 - 11:45 › Jackpot: Approximating Uncertainty Domains with Adversarial Manifolds - Nathanaël Munier
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11:45 - 12:10 › Stochastic Orthogonal Regularization - Ali Joundi
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12:10 - 12:35 › The CLASSO (Curve-LASSO) functional for curve reconstruction in inverse problems - Anéva Doliciane Tsafack
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12:35 - 14:30 Lunch  
14:30 - 15:30 Plenary talk (Auditorium Chateaubriand) - Chair: Jean Feydy (+)  
14:30 - 15:30 › Geometry Processing Beyond Finite Elements - Justin Solomon
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15:30 - 16:00 Coffee break (Rotonde Jacques Cartier)  
16:00 - 18:30 MS: Optimal transport and geometry (Auditorium Chateaubriand) - Chair: Quentin Mérigot (+)  
16:00 - 16:25 › On the Wasserstein Geodesic Principal Component Analysis of probability measures - Alice Le Brigant
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16:25 - 16:50 › Learning Monge maps by lifting and constraining Wasserstein gradient flows - Théo Dumont
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16:50 - 17:15 › Discrete Geometrical Tools in Shape Optimization - Édouard Oudet
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17:15 - 17:40 › Optimal Transport-based Conformal Prediction - Kimia Nadjahi
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17:40 - 18:05 › Semi-discrete convex order: From convex geometry to the steel industry and back again - David Bourne
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16:00 - 18:30 MS: Generalized Barycentric Coordinates (Grand Large Est) - Chair: Kai Hormann (+)  
16:00 - 16:25 › Barycentric coordinates: from simplices to polyhedra - Chongyang Deng
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16:25 - 16:50 › Applications of Generalized Barycentric Coordinates in Computer Graphics - Jean-Marc Thiery
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16:50 - 17:15 › Generalized barycentric coordinates in computational mechanics: From VEM to PINNs - Natarajan Sukumar
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17:15 - 17:40 › Robust Planar Shape Deformation: A Complex Analysis Approach to Injective Harmonic Maps - Ofir Weber
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17:40 - 18:05 › Variational Barycentric Coordinates - Ana Dodik
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18:05 - 18:30 › Stochastic Computation of Barycentric Coordinates - Mathieu Desbrun
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16:00 - 18:30 CS: High dimensional approximation and statistics (Grand Large Ouest) - Chair: Gabriel Peyré (+)  
16:00 - 16:25 › NuclearForest: A Robust Hybrid Method for Data Imputation - Jinwei Li
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16:25 - 16:50 › On Sobolev tests on high-dimensional spheres - Thomas Verdebout
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16:50 - 17:15 › On the randomized SVD in infinite dimensions - André Uschmajew
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17:15 - 17:40 › PCA of Probability Measures: Sparse and Dense Sampling Regimes - Erell Gachon
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17:40 - 18:05 › Surrogate to Poincaré inequalities on manifolds for collective dimension reduction in nonlinear feature spaces - Alexandre Pasco
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16:00 - 18:30 CS: Geometry processing (Bouvet) - Chair: Nir Sharon (+)  
16:00 - 16:25 › Feature curve preservation and resampling in 3D point clouds - Chiara Romanengo
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16:25 - 16:50 › Spline Interpolation on Compact Riemannian Manifolds - Charlie Sire
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16:50 - 17:15 › Mathematics of surface stackability - Ander Chocarro Salaberria
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17:15 - 17:40 › Optimisation of Gradient Meshes - Jiri Kosinka
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17:40 - 18:05 › Normalizing Diffusion Kernels with Optimal Transport - Nathan Kessler
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18:05 - 18:30 › Ortho-arc curves: a constructive approach to developable surface design - Vishesh Bhat
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18:30 - 20:30 Cocktail (Rotonde Jacques Cartier)  

Tuesday, June 9, 2026

Time Event (+)
08:30 - 09:30 Plenary talk (Auditorium Chateaubriand) - Chair: Jean-Louis Merrien (+)  
08:30 - 09:30 › Pythagorean–Hodograph Splines: From Structural Constraints to Constructive Approaches - Lucia Romani
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09:30 - 10:00 Coffee break (Rotonde Jacques Cartier)  
10:00 - 12:30 MS: Optimisation and Machine Learning (Auditorium Chateaubriand) - Chair: Edouard Pauwels (+)  
10:00 - 10:25 › A gradient flow for every c(x,y) cost: EVI-inspired convexity - Pierre-Cyril Aubin-Frankowski
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10:25 - 10:50 › Bias-optimal bounds for SGD with computer-aided proofs - Guillaume Garrigos
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10:50 - 11:15 › Correctness guarantees for the Burer-Monteiro factorization - Irène Waldspurger
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11:15 - 11:40 › Implicit Bias in Gradient Flow Learning: Results, Open Questions, and link with Mirror-Flow Dynamics - Loucas Pillaud-Vivien
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11:40 - 12:05 › Mean-field Learning for the management of consumption flexibilities in power systems - Nadia Oudjane
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12:05 - 12:30 › The AdEMAMix Optimizer: Better, Faster, Older - Pierre Ablin
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10:00 - 12:30 MS: Advances in splines: theory, methods, and applications (Grand Large Est) - Chair: Tatyana Sorokina (+)  
10:00 - 10:25 › A Construction of $C^r$ Conforming Finite Elements on the Alfeld Split in Any Dimension - Qingyu Wu
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10:25 - 10:50 › Overlap spline methods for elliptic boundary value problems - Oleg Davydov
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10:50 - 11:15 › Quadrature rules for smooth splines on uniformly refined triangles - Hendrik Speleers
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11:15 - 11:40 › Why spline products are hard, and how to fix them - Francesco Patrizi
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11:40 - 12:05 › A sheaf theory framework for supersplines and finite elements - Beihui Yuan
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12:05 - 12:30 › Geometric modeling at MTU Aero Engines: state of the art and research perspectives - Dominik Mokriš
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10:00 - 12:30 CS: Sparse and high-dimensional approximation 1 (Grand Large Ouest) - Chair: Markus Bachmayr (+)  
10:00 - 10:25 › Approximation and learning with compositional tensor trains - Charles Miranda
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10:25 - 10:50 › Iterative low-rank time integration of time-dependent Schrödinger equations - Polina Sachsenmaier
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10:50 - 11:15 › Low-Rank Approximation by Randomly Pivoted LU - Marc Aurèle Gilles
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11:15 - 11:40 › M-Tensor Formalism: A High Dimensional Approximation Framework for Scarce Data Contexts - Rémi Cloarec
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11:40 - 12:05 › Preconditioning and Numerical Stability in Neural Network Training for Parametric PDEs - Chenguang Duan
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12:05 - 12:30 › Reduced Order Models for Multiscale Problems –- Mitigating Kolmogorov barrier in RTE - Tianyu Jin
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10:00 - 12:30 CS: Computer-aided geometric design 1 (Bouvet) - Chair: Espen Sande (+)  
10:00 - 10:25 › Equi-affine minimal-degree moving frames for polynomial curves - Irina Kogan
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10:25 - 10:50 › Efficient evaluation of Gauss-Legendre curves - Filip Chudy
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10:50 - 11:15 › Interpolation by double Pythagorean-hodograph curves of degree seven - Selena Praprotnik
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11:15 - 11:40 › Numerically stable evaluation method for Gauss--Legendre basis - Hwan Pyo Moon
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11:40 - 12:05 › On the topological types of pointwise products of general circles in the unit quaternions - Niels Lubbes
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12:05 - 12:30 › Total positivity of Bernstein-type polynomial bases - Delgado Jorge, Universidad de Zaragoza
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12:30 - 14:00 Lunch  
14:00 - 15:00 Plenary talk (Auditorium Chateaubriand) - Chair: Anna Korba (+)  
14:00 - 15:00 › Machine learning and symmetries - Soledad Villar
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15:00 - 16:30 Poster Session 1 + Coffee (Rotonde Jacques Cartier) (+)  
15:00 - 16:30 › Geometric Representation and BIM–BEM Interoperability in Building Energy Simulations: Tools Overview and Sources of Uncertainty - Mariusz Cesarz
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15:00 - 16:30 › Compositional Polynomial Networks and Optimal Lipschitz Regularity for Model Order Reduction - Joel Soffo
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15:00 - 16:30 › Optimized multidimensional threshold-based classification in space weather applications - Francesco Marchetti
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15:00 - 16:30 › Minimax Optimal Kernel Two-Sample Tests with Random Features - Soumya Mukherjee
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15:00 - 16:30 › Variational Inference for Gaussian Mixtures via Spherical Hellinger-Kantorovich Gradient Flow - Aratrika Mustafi
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15:00 - 16:30 › A New Method to Accelerate SVM Resolution via Support Vector Identification - Gabriel Viellefon
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15:00 - 16:30 › Modelling with 3D Elastica - Marc Isern Hacker
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15:00 - 16:30 › Alignment and Automated Measurement of Smartphone-Reconstructed 3D Human Body Parts - Hadrien Bigo--Balland
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15:00 - 16:30 › Expressivity of congruence-based architectures for DNNs on positive-definite matrices - Antonin Oswald
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15:00 - 16:30 › Asymptotically optimal t-design curves on SO(3) and Gr2,4 - Clemens Karner
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15:00 - 16:30 › G2 Pythagorean Hodograph Curves - Mann Stephen
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15:00 - 16:30 › Data-driven primal-dual methods for compressed hyperspectral single pixel imaging - Séréna Hariga
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15:00 - 16:30 › Integrating Gk-continuous surface schemes in G+Smo - Dimitrios Tolis
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15:00 - 16:30 › A Nonlinear Tensor Network Architecture for Compressed End-to-End Learning - Jana Jovcheva
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15:00 - 16:30 › Fast rigid alignment of discretized 3D objects in sliced Wasserstein distance - Eric Verbeke
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15:00 - 16:30 › High-dimensional classification problems with Barron regular boundaries under margin conditions - Jonathan Garcia Rebellon
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15:00 - 16:30 › Lofting Using Blending Techniques - Tanja Henriksen
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15:00 - 16:30 › Designing vertical transition curves with nonparametric Bézier and B-spline curves - Javier Sánchez-Reyes
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15:00 - 16:30 › Geometric phases of modulated multivariate time series - Grégoire Doat
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15:00 - 16:30 › Approximating Environmental Impact Surfaces through Behavioral Shift Simulations: An LCA-based Scenario Analysis in the 15-Minute City Framework - Dorota Burchart
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15:00 - 16:30 › Balanced LoRA: Removing Parameter Invariance to Accelerate Convergence - Valérie Castin
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15:00 - 16:30 › Variational Reconstruction of wind velocity fields from LiDAR Measurements - Theau Cousin
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15:00 - 16:30 › Complex rational plane curves - Leonardo Fernandez-Jambrina
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15:00 - 16:30 › A Finite Volume Scheme for Diffusion Equations on Curved Polygonal Meshes - Hang Xudeng
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15:00 - 16:30 › Isogeometric Analysis for Stress-Constrained Topology Optimization - Guilherme Henrique Teixeira
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15:00 - 16:30 › Geometric Representation and Accessibility-Aware Approximation of Mountain Trails for Assistive Off-Road Mobility: the “Mountains Without Barriers” Integrated Platform - Marcin Staniek
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15:00 - 16:30 › Multi-modal Routing Algorithms as a Tool for Spatial Optimization of 15-Minute City Zones: A Case Study of the SUMODO International Project - Grzegorz Sierpinski
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15:00 - 16:30 › Progressive Iterative Approximation for Gauss–Legendre Curves - Jingxuan Li
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15:00 - 16:30 › A higher order hybrid approximation method using splines to singularly perturbed parabolic convection-diffusion problem using adaptive mesh. - Asish Saini
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15:00 - 16:30 › Adaptive mesh generation and a higher order hybrid method using splines to singularly perturbed parabolic reaction-diffusion equations. - Mamta Godara
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16:30 - 19:00 MS: Kernel-based Methods in Approximation and Learning Theory (Auditorium Chateaubriand) - Chair: Holger Wendland (+)  
16:30 - 16:55 › Fourier-free convergence results for kernel methods - Armin Iske
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16:55 - 17:20 › General superconvergence for kernel-based approximation - Gabriele Santin
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17:20 - 17:45 › Kernel-based Operator Reconstruction with Applications to Physics Informed Learning - Rüdiger Kempf
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17:45 - 18:10 › Multiscale Approximation as Bias Reduction for Manifold-Valued Regression - Nir Sharon
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18:10 - 18:35 › Scattered data approximation in samplet coordinates - Multerer Michael
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18:35 - 19:00 › Semi-Lagrange schemes on manifolds - Christian Rieger
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16:30 - 19:00 MS: Geometry Processing (Grand Large Est) - Chair: Julie Digne (+)  
16:30 - 16:55 › Geometric Hints for Learning with Shapes - Mirela Ben Chen
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16:55 - 17:20 › Analysis of 3D Plants - Stefanie Wuhrer
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17:20 - 17:45 › Computational Homogenization for Inverse Design of Surface-based Inflatables - Yingying Ren
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17:45 - 18:10 › Conformal Deformations Through the Lens of Curvature - Etienne Corman
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18:10 - 18:35 › Towards Neural Geometry Processing - Niloy Mitra
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18:35 - 19:00 › Neural implicit shape interpolation - Camille Buonomo
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16:30 - 19:00 CS: Optimal transport (Grand Large Ouest) - Chair: Julie Delon (+)  
16:30 - 16:55 › Gromov-Wasserstein at Scale, Beyond Squared Norms - Guillaume Houry
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16:55 - 17:20 › Multiscaling in Wasserstein Spaces - Wael Mattar
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17:20 - 17:45 › Quantum optimal transport and interpolations in quantum chemistry - Etienne Obermeyer
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17:45 - 18:10 › Statistical Estimaton of Monge Transport Maps via Brenier Potentials - Léo Portales
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18:10 - 18:35 › Variational Analysis in the Wasserstein Hierarchy - Christophe Vauthier
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18:35 - 19:00 › Linearized Optimal Transport for Geophysical Flow Forecasting - Mia Busuladzic-Begic
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16:30 - 19:00 CS: Image and signal processing (Bouvet) - Chair: Jean-Louis Merrien (+)  
16:30 - 16:55 › Completion of multivariate filterbanks by neural networks - Tomas Sauer
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16:55 - 17:20 › ConveyorAD: A Benchmark Dataset and Minimally Supervised Pipeline for Real-Time Industrial Anomaly Detection - Alexandre Leclerc
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17:20 - 17:45 › Dual Gradient Flow and Dual Power Method for the Computation of Nonlinear Eigenfunctions - Jonathan Laubmann
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17:45 - 18:10 › Relative Layer-Wise Relevance Propagation for Pixel Contribution on Image Classification - Olivier Gibaru
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18:10 - 18:35 › Multi-band Angular Template Matching Algorithm - Fabian Kruse
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Wednesday, June 10, 2026

Time Event (+)
08:30 - 09:30 Plenary talk (Auditorium Chateaubriand) - Chair: Anthony Nouy (+)  
08:30 - 09:30 › Sparsity and low-rank structures in the numerical solution of high-dimensional PDEs - Markus Bachmayr
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09:30 - 10:00 Coffee break (Rotonde Jacques Cartier)  
10:00 - 12:30 MS: Topological Data Analysis and applications (Auditorium Chateaubriand) - Chair: Théo Lacombe (+)  
10:00 - 10:25 › Cech persistence diagrams for (random) subsets of (generic) submanifolds - Vincent Divol
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10:25 - 10:50 › Merge Tree Interleavings for River Network Analysis - Thijs Beurskens
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10:50 - 11:15 › Multi-Parameter Topological Data Analysis with MMA - Mathieu Carrière
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11:15 - 11:40 › Topological Autoencoders++: Fast and Accurate Cycle-Aware Dimensionality Reduction - Julien Tierny
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11:40 - 12:05 › Universal Limits for Scale-Invariant Functionals in Geometric and Topological Data Analysis - Omer Bobrowski
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12:05 - 12:30 › Shapes, Spaces, Simplices, and Structure: Geometry, Topology, and Deep Learning - Bastian Grossenbacher-Rieck
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10:00 - 12:30 MS: High-dimensional approximation (Grand Large Est) - Chair: Olga Mula (+)  
10:00 - 10:25 › A function approximation algorithm using multilevel active subspaces - Fabio Nobile
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10:25 - 10:50 › Optimal constructive sampling for L2-approximation in Hilbert spaces - Mario Ullrich
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10:50 - 11:15 › Optimal sampling and natural gradient for fast online learning in non-linear reduced order models - Agustin Somacal
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11:15 - 11:40 › Stochastic convergence of a class of greedy-type algorithms - Evie Nielen
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11:40 - 12:05 › Structure-preserving model reduction on manifolds for port-Hamiltonian systems - Hongliang Mu
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12:05 - 12:30 › High-Dimensional Data Approximation on Simplicial Partitions - Peter Binev
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10:00 - 12:30 CS: Computer-aided geometric design 2 (Grand Large Ouest) - Chair: Tom Lyche (+)  
10:00 - 10:25 › Approximation in the Space of Lines with Applications in Robotics and Manufacturing - Bahram Ravani
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10:25 - 10:50 › Rational C1 cubic Powell–Sabin splines and applications - Ada Šadl Praprotnik
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10:50 - 11:15 › C^1-smooth isogeometric spline functions of general degree over mixed triangular and quadrilateral surface meshes - Marjeta Knez
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11:15 - 11:40 › G^2 interpolation by Minkowski Pythagorean-hodograph spline curves - Maria Lucia Sampoli
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11:40 - 12:05 › Interactive Control of Curvature Extrema and Inflections on B-Spline Curves - Eric Demers
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12:05 - 12:30 › Parametric medial axis templates for interior control of multi-sided patches - Márton Vaitkus
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10:00 - 12:30 CS: Machine learning, Optimization (Bouvet) - Chair: Nicolas Boumal (+)  
10:00 - 10:25 › Atomic Gradient Flows - Christian Amend
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10:25 - 10:50 › Chaoticity of Particle Systems under Empirical Moment Constraints - François Escolan
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10:50 - 11:15 › Convergence of empirical subgradients in optimal transport-based learning - Tam Le
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11:15 - 11:40 › Insights on Muon from Simple Quadratics - Antoine Gonon
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11:40 - 12:05 › Mirror consensus-based optimization and applications to adversarial attacks - Tim Roith, Technical University of Munich
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12:05 - 12:30 › Riemannian Natural Gradient for Learning Low-Rank Functional Tensor Networks - Nikolas Klug
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Thursday, June 11, 2026

Time Event (+)
08:30 - 09:30 Plenary talk (Auditorium Chateaubriand) - Chair: Albert Cohen (+)  
08:30 - 09:30 › Construction and Analysis of Invariant Neural Networks - Jonathan Siegel
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09:30 - 10:00 Coffee break (Rotonde Jacques Cartier)  
10:00 - 12:30 MS: Mathematical aspects of deep learning (Auditorium Chateaubriand) - Chair: Anthony Nouy (+)  
10:00 - 10:25 › Algebraic Neural Networks: Identifiability, Singularities, Critical Points - Kathlén Kohn
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10:25 - 10:50 › Geometry-induced Regularization in Deep ReLU Neural Networks - Francois Malgouyres
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10:50 - 11:15 › Hardware-Aware Structured Attention with Monarch Matrices - Laura Balzano
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11:15 - 11:40 › Incremental Learning in two-layer ReLU networks - Etienne Boursier
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11:40 - 12:05 › Softmax vs. Linear Attention in the Large-Prompt Regime - Claire Boyer
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12:05 - 12:30 › The implicit bias phenomenon in deep learning - Holger Rauhut
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10:00 - 12:30 CS: Mesh generation, finite elements and splines (Grand Large Est) - Chair: Bert Juettler (+)  
10:00 - 10:25 › A knot insertion-based proof of the Marsden identity for maximally smooth splines on arbitrary triangulations - Salah Eddargani
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10:25 - 10:50 › An adaptive moving mesh method using blending type spline constructions - Tatiana Kravetc
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10:50 - 11:15 › An Isogeometric Tearing and Interconnecting (IETI) method for the polyharmonic equation of order m over planar multi-patch geometries - Mario Kapl
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11:15 - 11:40 › B-spline-like bases for generalized C^2 Clough-Tocher spline spaces over a triangulation - Matija Šteblaj
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11:40 - 12:05 › Matching triangular and quadrilateral $C^1$ macro-elements - Jan Grošelj
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12:05 - 12:30 › Explicit Inversion of Planar NURBS Curves - Michelangelo Marsala
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10:00 - 12:30 CS: Shape analysis (Grand Large Ouest) - Chair: Jean Feydy (+)  
10:00 - 10:25 › Asymmetric Geodesic Curves on Latent Manifolds via Randers-Finsler Metric Learning - Théau Blanchard
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10:25 - 10:50 › Bayesian calibration of computer models with diffeomorphic registration distances - Paul Lartaud
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10:50 - 11:15 › Manifold Learning in Wasserstein Space - Bernhard Schmitzer
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11:15 - 11:40 › Sliced ReLU kernel, fast computations and two applications. - François-Xavier Vialard
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11:40 - 12:05 › Limited-View Elastic 3D--2D Registration with Differentiable Rendering for CT Metrology - François Guibault
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10:00 - 12:30 CS: Sparse and high-dimensional approximation 2 (Bouvet) - Chair: Peter Binev (+)  
10:00 - 10:25 › A Sparse Approximation Perspective on Operator Learning for Differential Equations - Fabian Taubert
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10:25 - 10:50 › Efficient solvers for coupled Brown-Neel Fokker-Planck equations - Manfred Faldum
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10:50 - 11:15 › High-dimensional, non-linear feedback control with neural networks - Hoeveler Bernhard
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11:15 - 11:40 › Multiscale-Spectral GFEM with Grassmannian Interpolation for Parametric Elliptic PDEs - Huqing Yang
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11:40 - 12:05 › Space-time adaptivity and preconditioning for porous media flow models - Simon Boisserée
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12:05 - 12:30 › Sparse optimization on length measures towards PDE constrained problems - Giacomo Cristinelli
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14:00 - 15:00 Plenary talk (Auditorium Chateaubriand) - Chair: Tom Lyche (+)  
14:00 - 15:00 › Explicit Dynamics in Isogeometric Analysis on Complex Geometries: Mass Lumping and Outlier-Removal - Espen Sande
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15:00 - 16:30 Poster Session 2 + Coffee (Rotonde Jacques Cartier) (+)  
15:00 - 16:30 › Solving Euclidean Problems by Isotropic Initialization - Khusrav Yorov
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15:00 - 16:30 › Token Sample Complexity of Attention - Léa Bohbot
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15:00 - 16:30 › Testing triangular B\'{e}zier surfaces for coincidence - Krassimira Vlachkova
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15:00 - 16:30 › Sinkhorn based Associative Memory retrieval using Spherical Hellinger Kantorovich dynamics - Aratrika Mustafi
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15:00 - 16:30 › Area Preserving Visualization Mapping on Deformable Surfaces - Antoine Borget
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15:00 - 16:30 › A functional tensor train by recursive Gaussian elimination - Matias Andia
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15:00 - 16:30 › Variance reduction for stochastic proximal point algorithm - Cheik Traoré
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15:00 - 16:30 › Riemannian Optimization on Tree Tensor Networks with Application in Machine Learning - Marius Willner
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15:00 - 16:30 › Model order reduction with randomized methods for parametrized evolution problems - Ulysse Desgroppes
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15:00 - 16:30 › SingLoRA: Low-Rank Adaptation with a Single Matrix - David Bensaid
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15:00 - 16:30 › Riemannian gradient descent along geodesic paths for shape optimization using isogeometric analysis - Rozan Rosandi
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15:00 - 16:30 › Uniform Kernel Prober - Soumya Mukherjee
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15:00 - 16:30 › Reconstructing Biomolecular Heterogeneity from Cryo-EM Data - Marc Aurèle Gilles
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15:00 - 16:30 › Improving Low-Level Ozone Forecasts with Functional Models and Spatial Data Integration - Bree Ettinger
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15:00 - 16:30 › Rational Gauss-Legendre polynomial curves - Soo Hyun Kim
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15:00 - 16:30 › Learning Morphological Representations - Mihaela Dimitrova
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15:00 - 16:30 › An Invariant Framework for Cell Shape Analysis - Giorgio Longari
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15:00 - 16:30 › Planar bi-offset curves and trajectories - Domenico Fazzino
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15:00 - 16:30 › Boundary layer meshing for hypersonic flows simulation - Anaïs Albarran
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15:00 - 16:30 › Wind field reconstruction based on LiDAR measurements - Theau Cousin
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15:00 - 16:30 › Time-delay-induced instabilities and Hopf bifurcation analysis in 2-neuron network model with reaction–diffusion term - Swati Tyagi
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15:00 - 16:30 › Refinement and Projectors for Freeform Splines - Linus Mussmaecher
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15:00 - 16:30 › Surface Reconstruction and Algorithmic Design in BIM-Based Workflows. - Mariusz Cesarz
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15:00 - 16:30 › Taxonomy of reduction matrices for Graph Coarsening - Antonin Joly
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15:00 - 16:30 › Structure-Preserving Discretization of the Observational Light Cone and Its Geometry - Alejandro Estrada-Llesta
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16:30 - 19:00 MS: Computer aided design and isogeometric methods (Auditorium Chateaubriand) - Chair: Carlotta Giannelli (+)  
16:30 - 16:55 › Efficient matrix computation for isogeometric discretizations with truncated hierarchical B-splines - Bert Juettler
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16:55 - 17:20 › On the use of nested Monge-Ampère mappings in isogeometric r-refinement - Angelos Mantzaflaris
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17:20 - 17:45 › C1 Simplex splines on the Clough-Tocher split in numerical simulation - Francesca Pelosi
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17:45 - 18:10 › Quadrature Schemes for Trimmed Geometries: Benchmarks and Comparisons - Benjamin Marussig
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18:10 - 18:35 › Structure-preserving isogeometric analysis with hierarchical B-splines - Deepesh Toshniwal
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18:35 - 19:00 › Structure-preserving isogeometric discretizations with Tchebycheffian B-splines - Carla Manni
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16:30 - 19:00 MS: Geometric measure theory and shape representation (Grand Large Est) - Chair: Blanche Buet (+)  
16:30 - 16:55 › Inferring single-cell trajectories from RNA velocity fields with varifold distances - Elodie Maignant
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16:55 - 17:20 › Learning on mm spaces based on Gromov's reconstruction theorem - Claire Brécheteau
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17:20 - 17:45 › Optimal regularity for quasiminimal sets of codimension one - Camille Labourie
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17:45 - 18:10 › Variational reconstruction of piecewise constant images - Romain Petit
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18:10 - 18:35 › Open problems on Steiner trees and maximal distance minimizers - Yana Teplitskaya
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18:35 - 19:00 › Approximating the area of a set: when geometric measure theory meets persistent homology. - Antoine Commaret
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16:30 - 19:00 CS: Approximation theory 2 (Grand Large Ouest) - Chair: Albert Cohen (+)  
16:30 - 16:55 › High-dimensional sparse recovery from function samples - instance optimality guarantees - Tizian Sommerfeld
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16:55 - 17:20 › New families of nonconforming histopolation methods for function reconstruction on polygonal meshes - Federico Nudo
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17:20 - 17:45 › On the optimal shape parameter for kernel methods: Sharp direct and inverse statements - Tizian Wenzel
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17:45 - 18:10 › Recovery from Approximation Error - Ayush Bhandari
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18:10 - 18:35 › Sample-based almost-sure quasi-optimal approximation in reproducing kernel Hilbert spaces - Philipp Trunschke
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18:35 - 19:00 › Statistical Consistency of Discrete-to-Continuous Limits of Determinantal Point Processes - Hugo Jaquard
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16:30 - 19:00 CS: Machine learning, Generative models, Transformers (Bouvet) - Chair: Virginie Ehrlacher (+)  
16:30 - 16:55 › Anisotropic interaction in self-attention dynamics on the sphere - Samira Kabri
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16:55 - 17:20 › Approximating the score function using Optimal Transport - Quentin Giton
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17:20 - 17:45 › Gaussian Match-and-Copy: A Minimalist Benchmark for Studying Transformer Induction - Antoine Gonon
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17:45 - 18:10 › Optimization-Free Diffusion Model - A Perturbation Theory Approach - Mathias Oster
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18:10 - 18:35 › The generalization of flow matching and its temporal phases: why and when does it work? - Mathurin Massias
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18:35 - 19:00 › From Score Matching to Diffusion: a fined-grained error analysis - Samuel Hurault
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Friday, June 12, 2026

Time Event (+)
08:30 - 11:00 MS: Geometric shape analysis: old and new (Auditorium Chateaubriand) - Chair: Luis F. Pereira (+)  
08:30 - 08:55 › SVarM: regression and classification in the space of varifold representations of geometric data - Emmanuel Hartman
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08:55 - 09:20 › Shape spaces of nonlinear flags - Ioana Ciuclea
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09:20 - 09:45 › Implicit Minimal Surfaces for Bijective Correspondences - Robin Magnet
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09:45 - 10:10 › Functional Maps: from a shape matching solution to a prior for Geometric Deep Learning - Simone Melzi
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10:10 - 10:35 › Bi-invariant Geodesic Regression - Martin Hanik
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10:35 - 11:00 › Decoupling Deformations via First Variations of Varifolds - Irene Kaltenmark
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08:30 - 11:00 MS: Graph Neural Networks (Grand Large Est) - Chair: Nicolas Keriven (+)  
08:30 - 08:55 › Sparsification and Connectivity in Graph Neural Networks - Claude Petit
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08:55 - 09:20 › Memorization in Graph Neural Networks - Adarsh Jamadandi
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09:20 - 09:45 › Graph Semi-Supervised Learning for Point Classification on Data Manifolds - Luana Ruiz
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09:45 - 10:10 › Rewiring Strategies for GNNs: Geometry, Features, and Beyond - Fragkiskos Malliaros
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10:10 - 10:35 › Backward oversmoothing: why is it hard to train GNNs? - Nicolas Keriven
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08:30 - 10:35 CS: Approximation theory 3 (Bouvet) - Chair: Tomas Sauer (+)  
08:30 - 08:55 › Robust approximation error estimates for analysis-suitable G1 isogeometric multi-patch discretizations - Fatima Hasanova
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08:55 - 09:20 › Approximation theory of polar splines - Philipp Zilk
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09:20 - 09:45 › New identities for exponential-reproducing subdivision schemes and special polynomials - Alberto Viscardi
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09:45 - 10:10 › Optimal Parametric Polynomial Interpolants of Elliptic Arcs - Emil Žagar
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10:10 - 10:35 › Polynomial G1 spline approximations of a sphere based on Archimedean and Catalan solids - Ema Češek
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08:30 - 10:35 CS: Machine learning theory, Neural networks (Grand Large Ouest) - Chair: Philipp Trunschke (+)  
08:30 - 08:55 › A Comparative Analysis of Kolmogorov-Arnold Network Architectures for Function Approximation - Adeeba Haider
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08:55 - 09:20 › Deep Neural Networks as Iterated Function Systems and a Generalization Bound - Jonathan Vacher
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09:20 - 09:45 › Ultra-fast feature learning for the training of two-layer neural networks in the two-timescale regime - Raphaël Barboni
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09:45 - 10:10 › On Universality of Equivariant Neural Networks - Marco Pacini
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10:10 - 10:35 › The geometry of neural networks: a Riemannian foliation perspective on robustness. - Eliot Tron
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10:35 - 11:00 SIGMA Prize Lecture (Grand Large Ouest) - Chair: Anthony Nouy (+)  
10:35 - 11:00 › Convergence rates for flow-based generative models - Arthur Stéphanovitch
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11:00 - 11:30 Coffee break (Rotonde Jacques Cartier)  
11:30 - 12:30 Plenary talk (Auditorium Chateaubriand) - Chair: Virginie Ehrlacher (+)  
11:30 - 12:30 › Flow Matching Through the Lens of Optimal Transport - Julie Delon
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