$q$-Rational and $q$-Real Binomial Coefficients

Abstract

We consider $q$-binomial coefficients built from the $q$-rational and $q$-real numbers defined by Morier-Genoud and Ovsienko in terms of continued fractions. We establish versions of both the $q$-Pascal identity and the $q$-binomial theorem in this setting. These results are then used to find more identities satisfied by the $q$-analogues of Morier-Genoud and Ovsienko, including a Chu--Vandermonde identity and $q$-Gamma function identities.