Proof of Gessel's \(\gamma\)-positivity conjecture (Q311509)
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scientific article; zbMATH DE number 6626779
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Proof of Gessel's \(\gamma\)-positivity conjecture |
scientific article; zbMATH DE number 6626779 |
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Proof of Gessel's \(\gamma\)-positivity conjecture (English)
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13 September 2016
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Summary: We prove a conjecture of Gessel, which asserts that the joint distribution of descents and inverse descents on permutations has a fascinating refined \(\gamma\)-positivity.
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descents
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inverse descents
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Eulerian polynomials
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\(\gamma\)-positivity
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