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A tale of two $q$-deformations : connecting dual polar spaces and weighted hypercubes

Combinatorics 2024-09-18 v1 Mathematical Physics math.MP

Abstract

Two qq-analogs of the hypercube graph are introduced and shown to be related through a graph quotient. The roles of the subspace lattice graph, of a twisted primitive elements of Uq(su(2))U_q(\mathfrak{su}(2)) and of the dual qq-Krawtchouk polynomials are elaborated upon. This paper is dedicated to Tom Koornwinder.

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Cite

@article{arxiv.2409.11243,
  title  = {A tale of two $q$-deformations : connecting dual polar spaces and weighted hypercubes},
  author = {Pierre-Antoine Bernard and Étienne Poliquin and Luc Vinet},
  journal= {arXiv preprint arXiv:2409.11243},
  year   = {2024}
}

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12 pages