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arXiv 0705.1812math.CO
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基本超几何级数的Cauchy算子

The Cauchy Operator for Basic Hypergeometric Series

Vincent Y. B. Chen, Nancy S. S. Gu

摘要:

引入了基本超几何级数的Cauchy增广算子。利用算子恒等式中某些参数的对称性,可以方便地得到Heine的${}_2ϕ_1$变换公式和Sears的${}_3ϕ_2$变换公式.柯西算子包含两个参数,它可以被认为是算子$T(bD_q)$的推广。利用这个算子,我们得到了Askey-Wilson积分,Askey-Roy积分,Sears的两项求和公式以及Barnes引理的$q$ -类似物的推广.最后,我们发现Cauchy算子也适用于研究二元Rogers-Szegö多项式或连续大$q$ -Hermite多项式.

英文摘要:

We introduce the Cauchy augmentation operator for basic hypergeometric series. Heine's ${}_2ϕ_1$ transformation formula and Sears' ${}_3ϕ_2$ transformation formula can be easily obtained by the symmetric property of some parameters in operator identities. The Cauchy operator involves two parameters, and it can be considered as a generalization of the operator $T(bD_q)$. Using this operator, we obtain extensions of the Askey-Wilson integral, the Askey-Roy integral, Sears' two-term summation formula, as well as the $q$-analogues of Barnes' lemmas. Finally, we find that the Cauchy operator is also suitable for the study of the bivariate Rogers-Szegö polynomials, or the continuous big $q$-Hermite polynomials.

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