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$d$-orthogonal polynomials, Fuss-Catalan matrices and lattice paths (2505.16718v1)
Published 22 May 2025 in math.CO
Abstract: In this note, we show how to define certain Riordan arrays, that we call the Fuss-Catalan-Riordan arrays, by means of a special family of $d$-orthogonal polynomials. We relate the Fuss-Catalan Riordan arrays to the Fuss Catalan numbers, and to certain lattice paths. We emphasise the role of the production matrices of the Riordan arrays that we encounter in our study.