Integral Transforms and Special Functions ( IF 0.7 ) Pub Date : 2021-06-21 , DOI: 10.1080/10652469.2021.1939329 S. I. Bezrodnykh 1
For the Lauricella hypergeometric function with an arbitrary number of variables , we construct formulas for analytic continuation into the vicinity of hyperplanes and their intersections providing that all variables are close to unit. Such formulas represent the function near the point as linear combinations of N–multiple hypergeometric series that are solutions of the same system of partial differential equations as . Such series are the N–dimensional analog of the Kummer solutions known for the Gauss equation. The constructed analytical continuation formulas allow one to effectively calculate the function outside the unit polydisk.
中文翻译:
Lauricella 函数 FD(N) 的解析延拓,用于接近超平面 {zj = zl} 的单位的变量
对于 Lauricella 超几何函数具有任意数量的变量,我们构造了超平面附近的解析延拓公式以及它们的交点,前提是所有变量都接近单位。这样的公式代表函数靠近点作为N - 多个超几何级数的线性组合,它们是相同的偏微分方程组的解. 这样的级数是高斯方程已知的 Kummer 解的N维模拟。构造的解析延拓公式允许有效地计算函数在单位 polydisk 之外。