Chessboard complexes indomitable

2009/11/18 by S. T. Vrećica, Vrecica, S. T., Rade T. Živaljević +1
Computer Science · Mathematics · #52A35 #55S35 #Algebraic Topology (math.AT) #Combinatorics (math.CO) #FOS: Mathematics #Geometric and Algebraic Topology #Homotopy and Cohomology in Algebraic Topology #Topological and Geometric Data Analysis

paper · pdf · doi:10.48550/arxiv.0911.3512

openalex publication_date 2009/11/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We give an alternative proof of the striking new Tverberg type theorem of Blagojevic and Ziegler, arXiv:0910.4987v1 [math.CO]. Our method also yields some new cases of "constrained Tverberg thereom" in the sense of Hell, including a simple colored Radon's theorem for d+3 points in R^d. This is a final version of the paper with improved presentation, corrected typos and added references.

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