Mikhail "Mischa" Gershevich Katz (/kæts/, Hebrew: מיכאיל כץ; born 1958)[1] is an Israeli mathematician and professor of mathematics at Bar-Ilan University.
[1] He did his graduate studies at Columbia University, receiving his Ph.D. in 1984 under the joint supervision of Troels Jørgensen and Mikhael Gromov.
[1] Katz has performed research in systolic geometry in collaboration with Luigi Ambrosio, Victor Bangert, Mikhail Gromov, Steve Shnider, Shmuel Weinberger, and others.
Along with these papers, Katz was a contributor to the book "Metric Structures for Riemannian and Non-Riemannian Spaces".
More recently Katz also contributed to the study of mathematics education, including work that provides an alternative interpretation of the number 0.999....[9]