Place-difference-value patterns

a generalization of generalized permutation and word patterns

Sergey Kitaev, Jeffrey Remmel

Research output: Contribution to journalArticle

Abstract

Motivated by the study of Mahonian statistics, in 2000, Babson and Steingr´ımsson introduced the notion of a “generalized permutation pattern” (GP) which generalizes the concept of “classical” permutation pattern introduced by Knuth in 1969. The invention of GPs led to a large number of publications related to properties of these patterns in permutations and words. Since the work of Babson and Steingr´ımsson, several further generalizations of permutation patterns have appeared in the literature, each bringing a new set of permutation or word pattern problems and often new connections with other combinatorial objects and disciplines. For example, Bousquet-M´elou et al. introduced a new type of permutation pattern that allowed them to relate permutation patterns theory to the theory of partially ordered sets.
In this paper we introduce yet another, more general definition of a pattern, called place-difference-value patterns (PDVP) that covers all of the most common definitions of permutation and/or word patterns that have occurred in the literature. PDVPs provide
many new ways to develop the theory of patterns in permutations and words. We shall give several examples of PDVPs in both permutations and words that cannot be described in terms of any other pattern conditions that have been introduced previously. Finally, we discuss several bijective questions linking our patterns to other combinatorial objects.
Original languageEnglish
Article numberA11
Pages (from-to)129-154
Number of pages26
JournalIntegers: Electronic Journal of Combinatorial Number Theory
Volume10
Publication statusPublished - 2010

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Permutation
Generalization
Partially Ordered Set
Bijective
Linking
Cover
Statistics
Generalise

Keywords

  • place-difference-value patterns
  • word patterns
  • permutations
  • permutation patterns theory

Cite this

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