Deepak Naidu

Assistant Professor
Department of Mathematical Sciences


Contact Information

  • Address: Department of Mathematical Sciences
    Northern Illinois University
    DeKalb, IL 60115
    Office: Watson Hall 358.
    Phone: 815-753-6756.
    E-mail:

Current Teaching (Spring 2014)

  • MATH 229 Calculus I. Course webpage is on blackboard.
  • MATH 621 Graduate Abstract Algebra II. Course webpage is on blackboard.

Research Interests

  • Tensor categories and their applications, representation theory.

  • Structure of algebras, specifically their Hochschild cohomology and their associated deformations.

Publications and Preprints

  1. Classification of integral modular categories of Frobenius-Perron dimension pq4 and p2q2 (with P. Bruillard, C. Galindo, S.-M. Hong, Y. Kashina, S. Natale, J. Plavnik, and E. Rowell), accepted in November 2013, to appear in Canadian Mathematical Bulletin. [arXiv]

  2. Twisted quantum Drinfeld Hecke algebras, accepted in May 2013, to appear in Pacific Journal of Mathematics. [arXiv]

  3. Hochschild cohomology and quantum Drinfeld Hecke algebras (with S. Witherspoon), accepted in January 2014, to appear in Selecta Mathematica. [arXiv]

  4. Hochschild cohomology of group extensions of quantum symmetric algebras (with P. Shroff and S. Witherspoon), Proceedings of the American Mathematical Society 139 (2011), no. 5, 1553-1567. [arXiv]

  5. Crossed pointed categories and their equivariantizations, Pacific Journal of Mathematics 247 (2010), no. 2, 477-496. [arXiv]

  6. Centers of graded fusion categories (with S. Gelaki and D. Nikshych), Algebra and Number Theory 3 (2009), no. 8, 959-990. [arXiv]

  7. A finiteness property for braided fusion categories (with E. C. Rowell), Algebras and Representation Theory 14 (2011), no. 5, 837-855. [arXiv]

  8. Fusion subcategories of representation categories of twisted quantum doubles of finite groups (with D. Nikshych and S. Witherspoon), International Mathematics Research Notices (2009), no. 22, 4183-4219. [arXiv]

  9. Some properties of group-theoretical categories (with S. Gelaki), Journal of Algebra 322 (2009), no. 8, 2631-2641. [arXiv]

  10. Lagrangian subcategories and braided tensor equivalences of twisted quantum doubles of finite groups (with D. Nikshych), Communications in Mathematical Physics 279 (2008), 845-872. [arXiv]

  11. Categorical Morita equivalence for group-theoretical categories, Communications in Algebra 35 (2007), 3544-3565. [arXiv]

Conferences Organized