3 papers
cs.SC2025
An Exact Algorithm for Computing the Structure of Jordan Blocks
Shinichi Tajima, Katsuyoshi Ohara, Akira Terui
An efficient method is proposed for computing the structure of Jordan blocks of a matrix of integers or rational numbers by exact computation. We have given a method for computing…
math.CA2024
A system of hypergeometric differential equations in variables of rank
Jyoichi Kaneko, Keiji Matsumoto, Katsuyoshi Ohara +1
We define a hypergeometric series in variables with parameters, which reduces to the generalized hypergeometric series when , and to Lauricella's hy…
math.AG2016
A system of hypergeometric differential equations in two variables of rank 9
Jyoichi Kaneko, Keiji Matsumoto, Katsuyoshi Ohara
We study a hypergeometric function in two variables and a system of hypergeometric differential equations associated with this function. This is a regular holonomic system of rank…