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feat: Poisson Integral Formula for the circle average of log ‖· - ρ‖#36938

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feat: Poisson Integral Formula for the circle average of log ‖· - ρ‖#36938
kebekus wants to merge 4 commits intoleanprover-community:masterfrom
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@kebekus kebekus commented Mar 21, 2026

Establish an analogue of the Poisson Integral Formula for the circle average of log ‖· - ρ‖ along the circle with radius ‖ρ‖.

The result will be used to establish Poisson's generalization of the classic Jensen formula in complex analysis.


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@github-actions github-actions bot added the t-analysis Analysis (normed *, calculus) label Mar 21, 2026
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github-actions bot commented Mar 21, 2026

PR summary cf61572730

Import changes for modified files

Dependency changes

File Base Count Head Count Change
Mathlib.Analysis.Complex.JensenFormula 2649 2651 +2 (+0.08%)
Import changes for all files
Files Import difference
5 files Mathlib.Analysis.Complex.JensenFormula Mathlib.Analysis.Complex.ValueDistribution.CharacteristicFunction Mathlib.Analysis.Complex.ValueDistribution.FirstMainTheorem Mathlib.Analysis.Complex.ValueDistribution.LogCounting.Asymptotic Mathlib.Analysis.Complex.ValueDistribution.LogCounting.Basic
2

Declarations diff

+ circleAverage_re_herglotzRieszKernel_mul_log
+ circleAverage_re_herglotzRieszKernel_mul_log₀
+ const_mul_norm_sub_circleMap_le_norm_sub_circleMap
+ continuousAt_herglotzLogIntegrand
+ continuous_herglotzLogIntegrand_circle
+ herglotzLogIntegrand
+ herglotzLogIntegrand_circleAverage_tendsto
+ herglotzRieszKernel_add_const
+ norm_herglotzLogIntegrand_circleMap_le

You can run this locally as follows
## summary with just the declaration names:
./scripts/pr_summary/declarations_diff.sh <optional_commit>

## more verbose report:
./scripts/pr_summary/declarations_diff.sh long <optional_commit>

The doc-module for scripts/pr_summary/declarations_diff.sh contains some details about this script.


No changes to technical debt.

You can run this locally as

./scripts/reporting/technical-debt-metrics.sh pr_summary
  • The relative value is the weighted sum of the differences with weight given by the inverse of the current value of the statistic.
  • The absolute value is the relative value divided by the total sum of the inverses of the current values (i.e. the weighted average of the differences).

@kebekus kebekus marked this pull request as ready for review March 21, 2026 09:00
@kebekus kebekus changed the title feat: Poisson Integral Formula for the circle average function log ‖· - ρ‖ feat: Poisson Integral Formula for the circle average of log ‖· - ρ‖ Mar 21, 2026
@j-loreaux j-loreaux added the awaiting-author A reviewer has asked the author a question or requested changes. label Mar 26, 2026
@kebekus kebekus removed the awaiting-author A reviewer has asked the author a question or requested changes. label Mar 27, 2026
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