Education
He was a student of Norbert Wiener at Massachusetts Institute of Technology (Doctor of Philosophy 1930).
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Shikao Ikehara
Edit Profile池原 止戈夫
mathematician university professor
Career
After Wiener in 1928, and by using Wiener"s Tauberian theory, Ikehara derived in 1931 another proof of the prime number theorem only using the non-vanishing of the zeta function on the line Re s = 1. Proofs of the prime number theorem before 1928 and only using the behaviour of the zeta function on the line Re s = 1 (as the 1908 proof of Edmund Landau), also appealed to some bound on the order of growth of the zeta function on this line. An improved version of Ikehara"s 1931 result by Wiener in 1932 is now known as the Wiener-Ikehara theorem.
Returning to Japan after studying with Doctor Wiener, he taught at Osaka University and the Tokyo Institute of Technology, and translated Cybernetics: Or Control and Communication in the Animal and Machine into Japanese.
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Born
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Died
October 10, 1984 (aged 80) -
Nationality
Japanese