Pattern avoidance and Schur-positivity in restricted-growth words of type B

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Abstract

This paper deals with pattern-avoidance classes of restricted-growth words of type B associated with set partitions of type B. We investigate such words which avoid patterns of lengths 2 and 3 by constructing generating trees. Additionally, we show how to use this enumeration to explore connections between these pattern-avoidance classes and quasi-symmetric functions, addressing symmetry and Schur-positivity in some special cases.

Original languageEnglish
Pages (from-to)116-138
Number of pages23
JournalDiscrete Applied Mathematics
Volume386
DOIs
StatePublished - 15 Jun 2026

Bibliographical note

Publisher Copyright:
© 2026 The Authors.

Keywords

  • Coxeter group of type B
  • Generating tree
  • Pattern-avoidance
  • Restricted-growth words
  • Schur positivity
  • Signed set partitions

ASJC Scopus subject areas

  • Discrete Mathematics and Combinatorics
  • Applied Mathematics

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