Suvrajit Bhattacharjee

Uniwersytet w Białymstoku,
Wydział Matematyki (Sekretariat 2009),
ul. Ciołkowskiego 1M,
15-245 Białystok,
Poland.

s.bhattacharjee@uwb.edu.pl, suvra.bh@gmail.com

I am a postdoc at the Faculty of Mathematics, University of Białystok in Białystok, Poland. Before that, I was a postdoc at the Mathematics Institute, University of Oslo in Oslo, Norway, and at the Mathematical Institute of Charles University in Prague, Czech Republic. I defended my doctoral thesis in December, 2020 at the Indian Statistical Institute in Kolkata, India, under the supervision of Prof. Debashish Goswami. My thesis can be found here.

My research interests are in operator algebras, \(KK\)-theory, dynamical systems (groups, groupoids and quantum groups), and coarse geometry.

A detailed CV can be found here.

Publications

Cartan subproduct systems, to appear in Comm. Math. Phys., 2026 (with O. Giselsson and S. Neshveyev). arXiv

Quasi-invariant lifts of completely positive maps for groupoid actions, Math. Proc. Cambridge Philos. Soc., vol. 180, 2026 (with M. Forough). arXiv

Equivariant \(C^*\)-correspondences and compact quantum group actions on Pimsner algebras, Canad. J. Math., vol. 77, 2025 (with S. Joardar). arXiv

Braided quantum symmetries of graph \(C^*\)-algebras, Internat. J. Math., vol. 35, 2024 (with S. Joardar and S. Roy). arXiv

Complex structures on three-point space, QP–PQ: Quantum Probab. White Noise Anal., vol. 32, 2024 (with D. Goswami). arXiv

Anyonic quantum symmetries of finite spaces, Lett. Math. Phys., vol. 113, 2023 (with Anshu, A. Rahaman and S. Roy). arXiv

Levi-Civita connections from toral actions, J. Geom. Phys., vol. 181, 2022 (with S. Joardar and S. Mukhopadhyay). arXiv

Quantum Galois groups of subfactors, Internat. J. Math., vol. 33, 2022 (with A. Chirvasitu and D. Goswami). arXiv

Generalized symmetry in noncommutative (complex) geometry, J. Geom. Phys., vol. 166, 2021 (with I. Biswas and D. Goswami). arXiv

Hopf coactions on odd spheres, J. Algebra, vol. 539, 2019 (with D. Goswami). arXiv

Events

Co-organizer of the noncommutative geometry session of IWOTA 2025, University of Twente. (July, 2025)

Co-organizer of the workshop Geometry and Analysis of Quantum Groups 2023, University of Oslo. (November, 2023)