Rate My Professor Alexandriu Chirvasitu

Alexandru Chirvasitu is an Associate Professor in the Department of Mathematics at the University at Buffalo. He earned his PhD in Mathematics from the University of California, Berkeley in 2014. Prior to his appointment at the University at Buffalo, he served as a postdoctoral researcher at the University of Washington in Seattle. His academic career focuses on advancing knowledge in pure mathematics, particularly through rigorous theoretical contributions.

Chirvasitu's research interests include representation theory with a quantum group flavour, non-commutative geometry, functional analysis and operator algebras, category theory, and foundational issues in algebraic geometry such as scheme and stack reconstruction from category-theoretic data. He has published extensively in prominent journals. Key publications feature 'Exotic Elliptic Algebras of dimension 4' (with S. Paul Smith, forthcoming in Advances in Mathematics), 'On the Hopf (co)center of a Hopf algebra' (with Paweł Kasprzak, Journal of Algebra, 2016), 'Quantum rigidity of negatively curved manifolds' (Communications in Mathematical Physics, 2016), 'Dedekind complete posets from sheaves on von Neumann algebras' (forthcoming in Applied Categorical Structures), 'Reflexivity and dualizability in categorified linear algebra' (with T. Johnson-Freyd and M. Brandenburg, Theory and Applications of Categories, 2015), 'Residually finite quantum group algebras' (Journal of Functional Analysis, 2015), and 'On quantum symmetries of compact metric spaces' (Journal of Geometry and Physics, 2015). Among his most cited works are 'Bigalois Extensions and the Graph Isomorphism Game' (Communications in Mathematical Physics, 2020), 'Cosemisimple Hopf algebras are faithfully flat over Hopf subalgebras' (Algebra & Number Theory, 2014), 'Tensor functors between categories of quasi-coherent sheaves' (Journal of Algebra, 2014), and 'Bicrossed products for finite groups' (Algebras and Representation Theory, 2009). These contributions underscore his impact in areas bridging operator algebras, quantum groups, and categorical structures.