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arXiv · 2008.02240

The vectorial kernel method for walks with longer steps

Valerie Roitner
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Abstract

Asinowski, Bacher, Banderier and Gittenberger (A. Asinowski, A. Bacher, C. Banderier and B. Gittenberger. Analytic combinatorics of lattice paths with forbidden patterns, the vectorial kernel method, and generating functions for pushdown automata. Algorithmica, pp. 1-43, 2019.) recently developed the vectorial kernel method - a powerful extension of the classical kernel method that can be used for paths that obey constraints that can be described by finite automata, e.g. avoid a fixed pattern, avoid several patterns at once, stay in a horizontal strip and many others more. However, they only considered walks with steps of length one. In this paper we will generalize their results to walks with longer steps. We will also give some applications of this extension and prove a conjecture about the asymptotic behavior of the expected number of ascents in Schroeder paths.

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Valerie Roitner. 2020-08-05. The vectorial kernel method for walks with longer steps. https://arxiv.org/abs/2008.02240

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