By Hirokazu Nishimura,Susumu Kuroda
Matroid concept used to be invented in the midst of the Nineteen Thirties by means of mathematicians independently, particularly, Hassler Whitney within the united states and Takeo Nakasawa in Japan. Whitney turned well-known, yet Nakasawa remained nameless until two a long time in the past. He left in simple terms 4 papers to the mathematical neighborhood, them all written in the midst of the Nineteen Thirties. It was once a foul time to have lived in a rustic that had turn into as eccentric as attainable. simply as Nazism grew to become progressively more flamboyant in Europe within the Nineteen Thirties, Japan turned an increasing number of esoteric and fanatical within the comparable period of time. This publication explains the little that's recognized approximately Nakasawa’s own existence in a Japan that had, between different mess ups, misplaced keep an eye on over its army. This e-book comprises his 4 papers in German and their English translations in addition to a few prolonged observation at the historical past of Japan in the course of these years. The e-book additionally includes 14 photographs of him or his relatives. even if the veil of puzzle surrounding Nakasawa’s existence has in simple terms been in part lifted, the paintings offered during this booklet speaks eloquently of a sad loss to the mathematical community.
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