doctoral_advisor death_place death_date birth_place nationality fields workplaces birth_date known_for doctoral_students article_title name alma_mater
david hilbert tokyo 28 february 1960 kazuya village near gifu japanese mathematics tokyo imperial university 21 april 1875 takagi curve , takagi existence theorem shokichi iyanaga de sigekatu kuroda kenjiro shoda hiroshi uehara teiji takagi
 teiji takagi tokyo imperial university
teiji takagi

teiji takagi -lrb- 高木 貞治 `` takagi teiji '' , april 21 , 1875 -- february 28 , 1960 -rrb- was a japanese mathematician , best known for proving the takagi existence theorem in class field theory .
the blancmange curve , the graph of a nowhere-differentiable but uniformly continuous function , is also called the takagi curve after his work on it .
he was born in the rural area of the gifu prefecture , japan .
he began learning mathematics in middle school , reading texts in english since none were available in japanese .
after attending a high school for gifted students , he went on to the university of tokyo , at that time the only university in japan .
there he learned mathematics from such european classic texts as salmon 's `` algebra '' and weber 's `` lehrbuch der algebra '' .
aided by hilbert , he then studied at göttingen .
aside from his work in algebraic number theory he wrote a great number of japanese textbooks on mathematics and geometry .
he was also instrumental during world war ii in the development of japanese encryption systems ; see purple .
