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Discrete Mathematics
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Discrete Mathematics
Article . 1996
License: Elsevier Non-Commercial
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Discrete Mathematics
Article . 1996 . Peer-reviewed
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Generalized Stirling and Lah numbers

Authors: Carl G. Wagner;

Generalized Stirling and Lah numbers

Abstract

The author develops three generalizations of Stirling numbers of the second kind, \(S(n,k)\), and of Lah numbers, within the theory of modular binomial lattices [\textit{P. Doubilet}, \textit{G.-C. Rota} and \textit{R. Stanley}, Proc. 6th Berkeley Sympos. Math. Statist. Probab., Univ. Calif. 1970, 2, 267-318 (1972; Zbl 0267.05002)] which enables the simultaneous combinatorial analysis of finite sets, vector spaces, and chains. These generalizations include in particular the Bender-Goldman and Carlitz-Milne \(q\)-analogues of \(S(n,k)\) for finite vector spaces [see, e.g., \textit{S. C. Milne}, Adv. Math. 43, 173-196 (1982; Zbl 0482.05012)], as well as Ward, Comtet, and Bell numbers with corresponding interpretations.

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Keywords

Modular lattices, Desarguesian lattices, Exact enumeration problems, generating functions, Bell and Stirling numbers, Bell numbers, Stirling numbers, Theoretical Computer Science, Lah numbers, Binomial coefficients; factorials; \(q\)-identities, \(q\)-calculus and related topics, modular binomial lattices, Discrete Mathematics and Combinatorics

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    41
    popularity
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    Top 10%
    influence
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
41
Top 10%
Top 10%
Average
hybrid