Jacob Tsimerman, a professor and graduate of the school, took home the Fields Medal, seen as math’s version of a Nobel.

Determination and effort propelled Jacob Tsimerman to the top of the math world. But now that he’s won a Fields Medal, he worries that the field is in jeopardy.

Jacob Tsimerman, a professor and graduate of the school, took home the Fields Medal, seen as math’s version of a Nobel.