Gosper in 2001 introduced the q-trigonometric functions and conjectured many interesting q-trigonometric identities. In this paper, we apply Riemann’s addition formula to deduce two Jacobi theta function identities. From these theta function identities, we confirm a q-trigonometric identity conjectured by Gosper and establish two other similar results. As an application, two theta function analogues for Ptolemy’s theorem are given.
机构:
United Arab Emirates Univ, Dept Math Sci, POB 15551, Al Ain, U Arab EmiratesUnited Arab Emirates Univ, Dept Math Sci, POB 15551, Al Ain, U Arab Emirates