Alexander Givental () is a Russian-American mathematician who is currently Professor of Mathematics at the University of California, Berkeley. His main contributions have been in symplectic topology and singularity theory, as well as their relation to topological string theories.
Givental graduated from the famed Moscow high school No. 2 (), one of the math teachers was Valery Senderov, but was not able to enter a program at a top university due to antisemitism in Soviet mathematics. He completed his undergraduate and master studies at the Gubkin Russian State University of Oil and Gas, and defended his PhD under the supervision of V. I. Arnold in 1987. He emigrated to the United States in 1990.
He provided the first proof of the mirror conjecture for CalabiâÂÂYau manifolds that are complete intersections in toric ambient spaces, in particular for quintic hypersurfaces in P<sup>4</sup>. As an extracurricular activity, he translates Russian poetry into English and publishes books, including his own translation of a textbook () in geometry by Andrey Kiselyov and poetry of Marina Tsvetaeva. Givental is a father of two.