|Died||9 January 1947(aged 60)|
|Alma mater||Imperial University of Tokyo|
|Known for||Kakeya set|
|Institutions||Imperial University of Tokyo|
Tokyo Bunri University
Institute of Statistical Mathematics
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. He received the Imperial Prize of the Japan Academy in 1928, and was elected to the Japan Academy in 1934.
- Robert Bentley Gardner (1997) "Some generalizations of the Eneström-Kakeya Theorem", Acta Mathematica Hungarica 74(1–2):125–34. doi:10.1007/BF02697881
- Tanaka, George (1986). "The Transportation Problem by Prof. Soichi Kakeya". Hosei University Research Department Bulletin.
- Kakeya, Soichi (1917), "Some problems on maximum and minimum regarding ovals", Tohoku Science Reports, 6: 71–88
- "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.