A Euler-Poincaré characteristic for the open set lattices of finite topologies

DOI10.1016/0095-8956(79)90003-0zbMath0409.05005OpenAlexW1982463940MaRDI QIDQ1258743

Shawpawn Kumar Das

Publication date: 1979

Published in: Journal of Combinatorial Theory. Series B (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0095-8956(79)90003-0

zbMATH Keywords

zeta functionantichainpartially ordered setorder idealsMoebius functionEuler-Poincare characteristicopen set lattices of finite topologies

Mathematics Subject Classification ID

Partial orders, general (06A06) Factorials, binomial coefficients, combinatorial functions (05A10) Generalities in topology (54A99)

Related Items (1)

Periodicity of residues of the number of finite labeled topologies

Cites Work

• On the number of open sets of finite topologies
• The Number of Finite Topologies

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