SYZ conjecture was proposed partly by which Fields Medal recipient?
SYZ conjecture:  The original conjecture was proposed in a paper by Strominger, Yau, and Zaslow, entitled "Mirror Symmetry is "T"-duality". Shing-Tung Yau: Shing-Tung Yau ( ; ; born April 4, 1949) is a Hong Kong and naturalised American mathematician.
Shing-Tung Yau