Title of article
The γ-vector of a barycentric subdivision
Author/Authors
Nevo، نويسنده , , Eran and Petersen، نويسنده , , T. Kyle and Tenner، نويسنده , , Bridget Eileen، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
17
From page
1364
To page
1380
Abstract
We prove that the γ-vector of the barycentric subdivision of a simplicial sphere is the f-vector of a balanced simplicial complex. The combinatorial basis for this work is the study of certain refinements of Eulerian numbers used by Brenti and Welker to describe the h-vector of the barycentric subdivision of a boolean complex.
Keywords
Charney–Davis conjecture , f-vector , ?-vector , Galיs conjecture
Journal title
Journal of Combinatorial Theory Series A
Serial Year
2011
Journal title
Journal of Combinatorial Theory Series A
Record number
1531644
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