Shigeo Sasaki
Shigeo Sasaki ( 18 November 1912 Yamagata Prefecture , Japan – 14 August 1987 Tokyo ) was a Japanese mathematician working on differential geometry who introduced Sasaki manifolds . 
<triplet> Shigeo Sasaki <subj> 18 November 1912 <obj> date of birth <subj> 14 August 1987 <obj> date of death <triplet> Sasaki manifold <subj> Shigeo Sasaki <obj> named after