Keiji Matsumoto

activity

19972025

most citedA new approach to the Cramer-Rao type bound of the pure state model

209 citations · 1.6k across the 96 of their papers we have counts for

collaborators

Showing math.CAShow all

2 papers · 1 filter

math.CA2022

Analogies of Jacobi's formula

Keiji Matsumoto

By considering Schwarz's map for the hypergeometric differential equation with parameters $(a, b, c) = (1/6, 1/2, 1)$ or $(1/12, 5/12, 1)$ , we give some analogies of Jacobi's formula $\var…

math.CA2022

An analogy of Jacobi's formula and its applications

Jun Chiba, Keiji Matsumoto

We give an analogy of Jacobi's formula, which relates the hypergeometric function with parameters $(1/4, 1/4, 1)$ and theta constants. By using this analogy and twice formulas of the…