On Solutions of the q-Hypergeometric Equation with q N = 1 |
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Authors: | Takeyama Yoshihiro |
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Institution: | (1) Research Institute for Mathematical Sciences, Kyoto University, Kyoto, 6068502, Japan |
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Abstract: | We consider the q-hypergeometric equation with q
N = 1 and , , . We solve this equation on the space of functions given by a power series multiplied by a power of the logarithmic function. We prove that the subspace of solutions is two-dimensional over the field of quasi-constants. We get a basis for this space explicitly. In terms of this basis, we represent the q-hypergeometric function of the Barnes type constructed by Nishizawa and Ueno. Then we see that this function has logarithmic singularity at the origin. This is a difference between the q-hypergeometric functions with 0 < |q| < 1 and at |q| = 1. |
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Keywords: | basic hypergeometric series q-hypergeometric equation root of unity |
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