Dr. Tapas Chatterjee
Associate Professor
- Department of Mathematics
- Indian Institute of Technology Ropar
- Rupnagar, Punjab - 140001, India
- Office: C-M23, Mezzanine Floor, SAB building
- Email : reverseof.csapatATiitrpr.ac.in
- Contact: +91-1881-232306
Ph.D. Scholars
- 1) Suraj Singh Khurana (Thesis defended on October 4, 2019) (Currently Assistant Professor at SRM University)
- 2) Dheeraj Kumar Sharma (Thesis defended on November 11, 2019 from NIT Kurukshetra) (Currently Assistant Professor at NIT Kurukshetra)
- 3) Sonika Dhillon (Thesis defended on May 7, 2021) (Currently NBHM Post-Doctoral fellow at ISI Delhi)
- 4) Ayantika Laha (Thesis defended on April 26, 2024) (Currently Postdoctoral fellow at IIT Palakkad)
- 5) Sonam Garg (Thesis defended on March 22, 2024) (Currently Postdoctoral fellow at IMSc Chennai)
- 6) Palak Narula (Ongoing)
- 7) Karishan Kumar (Ongoing)
- 8) Priya Jain (Ongoing)
- 9) Suvajit Ghosh (Ongoing)
- 10) Sachin Yadav (Ongoing)
- 11) Raheli Manna (Ongoing)
- 12) Sagar Mandal (Ongoing)
Post Doctoral Fellows
- 1) Khyati Khurana
Areas of Research
- 1. Number Theory
- 2. Special values of L-functions
- 3. Transcendence Theory
- 4. Analytic theory of numbers
- 5. Algebraic Number Theory
- 6. Normal Complement Problems
- 7. Algebraic Coding Theory
- 8. Diophantine Equations
- 9. Algebraic Cryptography
- PhD, Institute of Mathematical Sciences, Chennai, India, 2008-2013.
- M.Sc Mathematics, Jadavpur University, India, 2006-2008.
- B.Sc Mathematics, Jadavpur University, India, 2003-2006.
- April, 2022-- Present: Associate Professor, Indian Institute of Technology Ropar, Punjab, India.
- June, 2014 -- April, 2022: Assistant Professor, Indian Institute of Technology Ropar, Punjab, India.
- 2019: Visiting Professor, Universite Paris-Sorbonne, Paris, France
- 2018: Visiting Professor, Nagoya University, Nagoya, Japan.
- 2017: Visiting faculty, Universite Pierre et Marie Curie, University of Paris VI, France.
- 2013 --2014: Post-Doctoral Fellow, Queen's University, Kingston, Canada.
- 2013 : Visiting Researcher, ICERM, Brown University, Providence, USA.
2026
- 35. Debika Banerjee, Tapas Chatterjee and Khyati Khurana, "Explicit Integral representation containing the error term in Piltz divisor problem with congruence conditions", Journal of Mathematical Analysis and Applications, 555, issue 2, (2026), 130201.
- 34. Tapas Chatterjee and Takao Komatsu, "Special values of a q -multiple t -function of general level at roots of unity", to appear in the Mediterranean Journal of mathematics.
- 33. Tapas Chatterjee and Karishan Kumar, "On characterization of monogenic number fields associated with certain quadrinomials and its applications", to appear in the Research in Number Theory.
- 32. Tapas Chatterjee and Sonam Garg, Transcendental nature of $p$-adic Euler-Lehmer constants, Journal of Number Theory, 279 (2026), 761--776.
2025
- 31. Takao Komatsu, Tapas Chatterjee and Palak Narula, On p -Frobenius numbers for the numerical semigroups generated by three consecutive star numbers, to appear in the journal INTEGERS.
- 30. Tapas Chatterjee and Sonika Dhillon, SPECIAL VALUES OF DERIVATIVES OF CERTAIN $L$-FUNCTIONS , to appear in the Journal of the Ramanujan Mathematical Society.
- 29. Tapas Chatterjee and Ayantika Laha "A note on MDS property of circulant Matrices," To appear in the Journal of Discrete Mathematical Sciences & Cryptography.
- 28. Tapas Chatterjee and Takao Komatsu, Frobenius numbers associated with Diophantine triples of $x^2+3 y^2=z^3$, Revista de la Real Academia de Ciencias Exactas, Fisicas y Naturales. Series A. Matematicas, RACSAM, 119, No. 63 (2025).
- 27. Tapas Chatterjee and Ayantika Laha "A note on cyclic MDS and non-MDS matrices," Cryptography and Communications, 17, No. 4, 1109--1124 (2025).
- 26. Tapas Chatterjee and Sonam Garg, Algebraic identities among $q$- analogues of Euler double zeta values, Journal of the Ramanujan Mathematical Society, 40, No. 2 (2025), 95--106.
- 25. Tapas Chatterjee, Sagar Mandal, and Sourav Mandal, "On characterizing potential friends of 20", Annals of West University of TimisoaraMathematics and Computer Science61, (2025), 205–229.
2024
- 24. Tapas Chatterjee and Sonam Garg, Transcendental nature of p -adic digamma values, Research in Number Theory, 10(2024),no. 4, Paper No. 79, 19 Pages, DOI: 10.1007/s40993-024-00570-1.
- 23. Tapas Chatterjee and Sonam Garg, On Arithmetic Nature of a q-Euler-Double Zeta values, Proceedings of American Mathematical Society, 152, (2024), 1661--1672.
2023
- 22. Tapas Chatterjee and Sonam Garg, On q-Analogue of Euler-Stieltjes constants, Proceedings of American Mathematical Society, vol 151, no. 5 (2023), 2011-2022.
- 21. Tapas Chatterjee and Ayantika Laha "A note on Semi-Orthogonal (G-Matrix) and Semi-Involutory MDS Matrices," Finite Fields and Their Applications, 92 (2023), 22 PP.
- 20. Dheeraj Kumar Sharma, Rajoo Pandey and Tapas Chatterjee, Probabilistic algebraic attack on plantlet lightweight stream cipher, Sadhana, 48, (2023), no 4, 12 pp.
2022
- 19. Tapas Chatterjee and Sonika Dhillon, A note on a variant of a conjecture of Rohrlich, Mathematika, 68 (2022), no. 2, 400–415.
- 18. Tapas Chatterjee, Ayantika Laha and S. K. Sanadhya, "On the Structure of Format Preserving Sets in the Diffusion Layer of Block Ciphers," IEEE Transactions on Information Theory, vol. 68, no. 12, pp. 8268-8279, Dec. 2022, doi: 10.1109/TIT.2022.3187407.
- 17. Tapas Chatterjee and Sonika Dhillon, On a conjecture of Murty-Saradha about digamma values, Monatshefte fur Mathematik, 199, No. 1 (2022) 23–43.
2020
- 15. Tapas Chatterjee and Sonika Dhillon, Linear Independence of Harmonic Numbers over the field of Algebraic Numbers II, Ramanujan Journal Springer, 52 (2020) 555-580, DOI: 10.1007/S11139-019-00183-8.
- 14. Tapas Chatterjee and Sonika Dhillon, Linear independence of logarithms of cyclotomic numbers and a conjecture of Livingston, Canadian Math. Bull, 63 (2020) no. 1, 31-45, DOI:10.4153/S0008439 519000468.
- 13. Tapas Chatterjee and Sonika Dhillon, Linear Independence of Harmonic Numbers over the field of Algebraic Numbers, Ramanujan Journal Springer, 51 (2020) 43-66, DOI:10.1007/s11139-018-0124-6.
2019
- 12. Tapas Chatterjee and S. S. Khurana, Shifted Euler constants and a generalization of Euler-Stieltjes constants, Journal of Number Theory, 204 (2019), 185-210, DOI: 10.1016/j.jnt.2019.04.001.
- 11. Tapas Chatterjee and S. S. Khurana, Erdosian functions and an identity of Gauss, Proceedings of the Japan Academy, Ser. A., 95 (2019), no. 6, 59--63.
- 10. Tapas Chatterjee and S. S. Khurana, A note on generalizations of Stieltjes constants, Journal of the Ramanujan Mathematical Society, 34, No, 4, (2019), 457--468.
2018
- 9. Tapas Chatterjee, M. Ram Murty, and Siddhi Pathak, A VANISHING CRITERION FOR DIRICHLET SERIES WITH PERIODIC COEFFICIENTS, Contemporary Mathematics, AMS Proceedings, 701, 2018, 69–80.
2015
- 7. Tapas Chatterjee, Sanoli Gun, and Purusottam Rath, A Number field extension of a question of Milnor, Contemporary Mathematics, AMS Proceedings, 655 (2015), 15--26.
- 6. Tapas Chatterjee and M. Ram Murty, On a conjecture of Erd\"{o}s and certain Dirichlet series, Pacific Journal of Mathematics 275-1 (2015), 103--113.[pdf]
2014
- 5. Tapas Chatterjee and Sanoli Gun, On the zeros of Generalized Hurwitz zeta functions, Journal of Number Theory, 145, (2014), 352--361. [pdf]
- 4. Tapas Chatterjee and M. Ram Murty, Non-vanishing of Dirichlet series with periodic coefficients, Journal of Number Theory, 145, (2014), 1--21.[pdf]
- 3. Tapas Chatterjee and Sanoli Gun, The Digamma function, Euler-Lehmer constants and their $p$-adic counterparts, Acta Arithmetica. 162(2014), 2, 197-208.[pdf]