Homotopy type and Euler characteristic of partially ordered sets

DOI10.1016/S0195-6698(81)80045-5zbMath0472.06004OpenAlexW2022675845MaRDI QIDQ1158177

James W. Walker

Publication date: 1981

Published in: European Journal of Combinatorics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/s0195-6698(81)80045-5

zbMATH Keywords

idealsfinite chainshomotopy equivalencecontractiblehomology isomorphismproduct of posetsacyclic carrier theoremcoherent cutsetCross-cutisotone map of finite posetsMoebius numbersRota's Galois connection theorem

Mathematics Subject Classification ID

Partial orders, general (06A06) Exact enumeration problems, generating functions (05A15) Galois correspondences, closure operators (in relation to ordered sets) (06A15)

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