• 1 Department of Mathematics and Statistics [Toronto]

In 2010, Kh. Hessami Pilehrood and T. Hessami Pilehrood introduced generating function identities used to obtain series accelerations for values of Dirichlet's $\beta$ function, via the Markov--Wilf--Zeilberger method. Inspired by these past results, together with related results introduced by Chu et al., we introduce a variety of hypergeometric recurrences. We prove these recurrences using the WZ method, and we apply these recurrences to obtain series acceleration identities. We introduce a family of summations generalizing a Ramanujan-type series for $\frac{1}{\pi^2}$ due to Guillera, and a family of summations generalizing an accelerated series for Catalan's constant due to Lupa\c{s}, and many related results.

• 05A15 - Exact enumeration problems, generating functions
• 11Y60 - Evaluation of number-theoretic constants
• 33C20 - Generalized hypergeometric series, \({}_pF_q\)
• 33F10 - Symbolic computation of special functions (Gosper and Zeilberger algorithms, etc.)
• 40A05 - Convergence and divergence of series and sequences
• 41A25 - Rate of convergence, degree of approximation