Alexander Givental (Александр Борисович Гивенталь) is a Russian American mathematician working in the area of symplectic topology, singularity theory and their relations to topological string theories. He earned his Ph.D. under the supervision of V. I. Arnold, in 1987. He provided the first proof of the mirror conjecture for toric Calabi–Yau manifolds, in particular for quintic hypersurfaces in P4. He is now Professor of Mathematics at the University of California, Berkeley.
- Cox, David A.; Katz, Sheldon (1999), Mirror Symmetry and Algebraic Geometry, Providence, Rhode Island: American Mathematical Society, ISBN 0-8218-1059-6.