A species approach to Rota's twelvefold way

Research output: Contribution to journalArticlepeer-review


An introduction to Joyal's theory of combinatorial species is given and through it an alternative view of Rota's twelvefold way emerges.

Original languageEnglish
Pages (from-to)515-536
Number of pages22
JournalExpositiones Mathematicae
Issue number4
Publication statusPublished - Dec 2020

Bibliographical note

Publisher Copyright:
© 2019 Elsevier GmbH

Other keywords

  • Combinatorial species
  • Cycle index series
  • Functor
  • Generating series
  • Twelvefold way
  • Type generating series

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