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Izumi, Masako (1930–1999)

Dr Masako Izumi died on Friday 18 June at Canberra Hospital, Woden, after a long battle with cancer. She was born on 15 February 1930 at Sendai, Japan. She was the widow of the well-known Japanese mathematician Professor Shin-Ichi Izumi. Masako for some years was senior research fellow at the ANU in the Department of Mathematics, Research School of Physical Sciences. After due examination of her published work in the theory of Fourier Series and their summablility, she was admitted to the Degree of Doctor of Science in April 1976.

Masako was well known in the mathematical world having travelled to many countries.

She visited Hungary doing research at the Mathematical Institute Academy in Budapest. She also travelled to France, working in the Research Department of Mathematics at Montpellier University, Canada, Department of Mathematics, University of Sherbrooke and of course Japan where she was a Research Fellow at the Institute of Natural Sciences at Nihon University.

Her roles at the ANU included Senior Research Fellow, Department of Mathematics, Institute of Advanced Studies and Visiting Fellow at the Institute of Advanced Studies.

Dr Izumi held a Bachelor of Science from Tokyo Science College and a Doctor of Science from the ANU. With her husband Professor Ichi, Dr Izumi wrote and published over 160 papers throughout her career. She had an enormous talent for making friends and her many friends will remember her for her marvellous dinner parties and for her generosity.

In the later part of her life she took up fishing with her second husband Richard with the Southern Cross Club Fishing Club and won, for two years running, the Fishing Trophy for catching the most fish.

She will be missed by all her relatives in Japan and friends in Canberra.

Original publication

Citation details

'Izumi, Masako (1930–1999)', Obituaries Australia, National Centre of Biography, Australian National University, https://oa.anu.edu.au/obituary/izumi-masako-521/text522, accessed 22 January 2022.

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