%0 Journal Article %T The generalized Borwein conjecture. II. Refined q-trinomial coefficients %A S. Ole Warnaar %J Mathematics %D 2001 %I arXiv %R 10.1016/S0012-365X(03)00047-5 %X Transformation formulas for four-parameter refinements of the q-trinomial coefficients are proven. The iterative nature of these transformations allows for the easy derivation of several infinite series of q-trinomial identities, and can be applied to prove many instances of Bressoud's generalized Borwein conjecture. %U http://arxiv.org/abs/math/0110307v1