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In this paper, we conjecture an extension to Bressoud's 1996 generalization of Borwein's famous 1990 conjecture. We then state two infinite hierarchies of non-negative q-series identities which are interesting and elegant examples of our proposed conjecture and Bressoud's generalized conjecture respectively. Finally, using certain positivity-preserving transformations for q-binomial coefficients, we prove the non-negativity of the two infinite families.
Bérkovich et al. (Sat,) studied this question.