Reducibility of hypergeometric equations
Reducibility of hypergeometric equations
复制标题
超几何方程的可约性
DOI:
10.1007/978-3-319-52842-7_14
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
T. Oshima
中科院分区:
文献类型:
--
作者:
上野忠美;横山洋海;岩室史英;T. Oshima
We study a necessary and sufficient condition so that hypergeometric equations are reducible. Here the hypergeometric equations with one variable mean the rigid Fuchsian linear ordinary differential equations. If the equations with one variable have more than four singular points, they naturally define hypergeometric equations with several variables including Appell’s hypergeometric equations. We also study the reducibility of such equations with several variables and we find a new kind of reducibility, which appears, for example, in a decomposition of Appell’sF4.