Sōichi Kakeya

Sōichi Kakeya (掛谷 宗一, Kakeya Sōichi, January 18, 1886 – January 9, 1947) was a Japanese mathematician who worked mainly in mathematical analysis and who posed the Kakeya problem and solved a version of the transportation problem.[2][3] He received the Imperial Prize of the Japan Academy in 1928, and was elected to the Japan Academy in 1934.[4]

Sōichi Kakeya
Born	18 January 1886 Fukayasu, Japan
Died	9 January 1947 (aged 60)
Nationality	Japan
Alma mater	Imperial University of Tokyo
Known for	Kakeya set Kakeya conjecture Eneström-Kakeya theorem[1]
Scientific career
Fields	Mathematics
Institutions	Imperial University of Tokyo Tokyo Bunri University Institute of Statistical Mathematics

References

1. Robert Bentley Gardner (1997) "Some generalizations of the Eneström-Kakeya Theorem", Acta Mathematica Hungarica 74(1–2):125–34. doi:10.1007/BF02697881
2. Tanaka, George (1986). "The Transportation Problem by Prof. Soichi Kakeya". Hosei University Research Department Bulletin.
3. Kakeya, Soichi (1917), "Some problems on maximum and minimum regarding ovals", Tohoku Science Reports, 6: 71–88
4. "The Japan Academy, Deceased Members: K, L".

• Kakeya, S. (1912-13) "On the Limits of the Roots of an Algebraic Equation with Positive Coefficients," Tohoku Mathematical Journal (First Series),2:140–142.