Some determinants of path generating functions

Details Some determinants of path generating functions Some determinants of path generating functions

2009-11-09

arxiv.org/abs/0911.1737v3

Adv. Appl. Math. 46 (2011), 144-174

Mathematics

Combinatorics

35 pages, AmS-TeX; minor corrections; final version to appear in Adv. Appl. Math

Scientific paper

We evaluate four families of determinants of matrices, where the entries are sums or differences of generating functions for paths consisting of up-steps, down-steps and level steps. By specialisation, these determinant evaluations have numerous corollaries. In particular, they cover numerous determinant evaluations of combinatorial numbers - most notably of Catalan, ballot, and of Motzkin numbers - that appeared previously in the literature.

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