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math.CO2014
Multiple chessboard complexes and the colored Tverberg problem
Duško Jojić, Siniša T. Vrećica, Rade T. Živaljević
Following D.B. Karaguezian, V. Reiner, and M.L. Wachs (Matching Complexes, Bounded Degree Graph Complexes, and Weight Spaces of -Complexes, Journal of Algebra 2001) we study th…
math.CO2014
Generalized Dehn-Sommerville relations for hypergraphs
Vladimir Grujic, Tanja Stojadinovic, Dusko Jojic
The generalized Dehn-Sommerville relations determine the odd subalgebra of the combinatorial Hopf algebra. We introduce a class of eulerian hypergraphs that satisfy the generalized…