Geodesic
Proof of Gessel's \(\gamma\)-positivity conjecture
Zhicong Lin1
1Jimei University & National Institute for Mathematical Sciences
The electronic journal of combinatorics, Tome 23 (2016) no. 3
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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.
DOI : 10.37236/5797
Classification : 05A05, 11B68
Mots-clés : descents, inverse descents, Eulerian polynomials, \(\gamma\)-positivity

Zhicong Lin  1

1 Jimei University & National Institute for Mathematical Sciences 
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     author = {Zhicong Lin},
     title = {Proof of {Gessel's} \(\gamma\)-positivity conjecture},
     journal = {The electronic journal of combinatorics},
     year = {2016},
     volume = {23},
     number = {3},
     doi = {10.37236/5797},
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     url = {http://geodesic.mathdoc.fr/articles/10.37236/5797/}
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Zhicong Lin. Proof of Gessel's \(\gamma\)-positivity conjecture. The electronic journal of combinatorics, Tome 23 (2016) no. 3. doi: 10.37236/5797

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