Kumiko Nishioka

Kumiko Nishioka (西岡 久美子) is a Japanese mathematician at Keio University. She specializes in transcendental numbers, and is known for her research related to the theory of Mahler functions  and Painlevé transcendents. In 1996 she published the first comprehensive text on transcendence of Mahler functions, Mahler Functions and Transcendence, extending and generalizing Mahler's method. Her husband Keiji Nishioka is also a mathematician, and a coauthor.