Lattice Walks in the Octant with Infinite Associated Groups

15 Mar 2017  ·  Kauers Manuel, Wang Rong-Hua ·

Continuing earlier investigations of restricted lattice walks in $\mathbb{N}^3$, we take a closer look at the models with infinite associated groups. We find that up to isomorphism, only 12 different infinite groups appear, and we establish a connection between the group of a model and the model being Hadamard...

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Combinatorics