Abstract.
We derive some formulas for the Carlitz q-Fibonacci polynomials F n (t) which reduce to the finite version of the Rogers-Ramanujan identities obtained by I. Schur for t = 1. Our starting point is a representation of the q-Fibonacci polynomials as the weight of certain lattice paths in \(\mathbb{R}^2 \) contained in a strip along the x-axis. We give an elementary combinatorial proof by using only the principle of inclusion-exclusion and some standard facts from q-analysis.
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Cigler, J. q-Fibonacci Polynomials and the Rogers-Ramanujan Identities. Ann. Comb. 8, 269–285 (2004). https://doi.org/10.1007/s00026-004-0220-8
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DOI: https://doi.org/10.1007/s00026-004-0220-8