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Chuanan Wei

Publications and source records attributed to Chuanan Wei.

52 records · Page 3Linked to original sources

Pell's equation and series expansions for irrational numbers

Solutions of Pell's equation and hypergeometric series identities are used to study series expansions for $\sqrt{p}$ where $p$ are arbitrary prime numbers. Numerous fast convergent series expansions for this family of irrational numbers are established.

math.NT↗

Extensions of two $q$-Gosper identities with an extra integer parameter

According to the method of series rearrangement, we establish the extensions of two $q$-Gosper identities with an extra integer parameter. The limiting cases of them produce the generalizations of Gosper's two $_3F_2(\frac{3}{4})$-series identities with an additional integer parameter. Meanwhile, several related results are also given.

math.CO↗

Generalizations of Andrews' curious identities

According to the method of series rearrangement, we establish two generalizations of Andrews' curious $q$-series identity with an extra integer parameter. The limiting cases of them produce two extensions of Andrews' curious $_3F_2(\frac{3}{4})$-series identity with an additional integer parameter. Meanwhile, several related results are also given.

math.CO↗

Series expansions for $1/π^m$ and $π^m$

By means of the telescoping method, we establish two sum- mation formulas on sine function. As the special cases of them, several interesting series expansions for $1/π^m$ and $π^m$.

math.CO↗

A new proof of Andrews' conjecture for $_4ϕ_3$-series

In terms of Sear's transformation formula for $_4ϕ_3$-series, we give new proofs of a summation formula for ${_4ϕ_3}$-series due to Andrews [2] and another summation formula for${_4ϕ_3}$-series conjectured in the same paper. Meanwhile, other several related results are also derived.

math.CO↗

Generalizations of Ramanujan's reciprocity formula and the Askey-Wilson integral

By using two known transformation formulas for basic hypergeometric series, we establish a direct extension of Bailey's $_6ψ_6$-series identity. Subsequently, it and Milne's identity are employed to drive multi-variable generalizations of Ramanujan's reciprocity formula. Then we utilize also Milne's identity to deduce a multi-variable generalization of the Askey-Wilson integral.

math.CA↗

Contiguous relations of $_3ϕ_2$-series

According to Abel's lemma and the method of linear combinations, we establish numerous contiguous relations of $_3ϕ_2$-series, which can be regarded as q-analogues of the contiguous relations of $_3F_2$-series due to Krattenthaler and Rivoal [12] or Chu and Wang [4].

math.CA↗

Extensions of Ramanujan's two formulas for $1/π$

In terms of the hypergeometric method, we establish the extensions of two formulas for $1/π$ due to Ramanujan [27]. Further, other five summation formulas for $1/π$ with free parameters are also derived in the same way.

math.CO↗

Derivative operator and harmonic number identities

By applying the derivative operator to the corresponding hypergeometric form of a $q$-series transformation due to Andrews [1,Theorem 4], we establish a general harmonic number identity. As the special cases of it, several interesting Chu-Donno type identities and Paule-Schneider type identities are displayed.

math.CO↗