The cardinal and the idempotent number of various monoids of transformations on a finite chain.

zbMath1208.20057MaRDI QIDQ624874

Manuel M. Jesus, Gracinda M. S. Gomes, Vítor H. Fernandes

Publication date: 10 February 2011

Published in: Bulletin of the Malaysian Mathematical Sciences Society. Second Series (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/244391

zbMATH Keywords

numbers of idempotentsmonoids of transformationsnumbers of order-preserving transformationsnumbers of orientation preserving transformations

Mathematics Subject Classification ID

Exact enumeration problems, generating functions (05A15) Semigroups of transformations, relations, partitions, etc. (20M20)

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