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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Combinatorial structures and group invariant partitions
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by Dennis E. White and S. G. Williamson PDF
Proc. Amer. Math. Soc. 55 (1976), 233-236 Request permission

Abstract:

If a group acts on a set, an action of the group is induced on the partitions of the set. A formula is developed for the number of partitions invariant under this action. The formula is extended to count combinatorial objects such as labeled rooted trees or permutations defined on the invariant partitions.
References
Additional Information
  • © Copyright 1976 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 55 (1976), 233-236
  • DOI: https://doi.org/10.1090/S0002-9939-1976-0392600-9
  • MathSciNet review: 0392600