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- W2166883268 abstract "Certain new combinatorial numbers which arise in the counting of finite topologies are introduced and formulae obtained. These numbers are used to obtain a known formula for t n , the number of labelled topologies on n points in terms of the Stirling numbers S(n, p) and d n , the number of labelled T 0 -topologies on n points. The numbers d n are computed for n ≤ 5 with the the help of a method of Comtet (1966) (which seems to have been missed by later authors), reinterpreted for transitive digraphs." @default.
- W2166883268 created "2016-06-24" @default.
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- W2166883268 date "1975-02-01" @default.
- W2166883268 modified "2023-09-24" @default.
- W2166883268 title "Counting of finite topologies and a dissection of Stirling numbers of the second kind" @default.
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- W2166883268 doi "https://doi.org/10.1017/s0004972700023704" @default.
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