https://sites.google.com/view/chiranjitray

Motivated students with a valid CSIR/UGC NET, NBHM fellowship, or GATE score, a decent academic background, and an interest in Number Theory are encouraged to apply for a Ph.D. position under my guidance.

You may email me a brief CV at chiranjitray@nitc.ac.in

https://nitc.ac.in/custom-pages/phd-monsoon-semester-july-admissions-2026-27

National Institute of Technology Calicut

Monsoon Semester - 2024 

Course Coordinator:  

– MA1005E:  Calculus, Probability and Statistics; B.Arch. (ARCH), Number of students:  50  (one section)

Course Instructor:
– MA1003E:  Linear Algebra and Calculus; B.Tech. (ME & PE), Number of students: 50 + 50 (two sections)

Winter Semester - 2023

Course Coordinator:  
– MA1011E: Calculus and Linear Algebra  and Course Instructor for B.Tech. (EC & EE), Number of students:  52 + 52 (two sections)

Monsoon Semester - 2023  

Course Instructor:
– MA1001E (EC 03)/MA1001D (EC) - Differential Equations and Calculus,  B.Tech. (EC), Number of students:  52 (one section)
– MA1002E (CS03) - Calculus,  B.Tech. (CS), Number of students: 55 (one section)

Indian Institute of Information Technology Sri City

– Course Instructor: IMA101 - Discrete Structures and Matrix Algebra
B.Tech. (CS & ECE), Number of students: 82 (one sections out of four sections)   July -to- October 2022, July -to- September 2023

– Course Coordinator: IMA102 - Probability and Statistics
B.Tech. (CS & ECE), Number of students: : 82 + 72 (two sections out of four sections)   February 2023 -to- June 2023

Indian Statistical Institute Delhi

• Chiranjit Ray, Certain eta-quotients  and  $ell$-regular partitions  with distinct odd parts, The Ramanujan Journal  (accepted).

• Chiranjit Ray, Distribution of  Andrews' Singular Overpartitions C_p,1(n), Research in Number Theory 10 (2024), no. 10, 1–8.

• Chiranjit Ray, Distribution and divisibility of the Fourier coefficients of certain Hauptmoduln, Journal of   Number Theory 248 (2023), 343-367.

• Chiranjit Ray,  Divisibility and distribution of  mex related  integer partitions of  Andrews and Newman, International Journal of Number Theory 19 (2023), no. 3, 581–592.

• Chiranjit Ray, Manami Roy and Shaoyun Yi, Congruence relations for dimension of Siegel cusp forms and 4-core partitions, The Ramanujan Journal  58 (2022), no. 4, 1011-1023.

• Chiranjit Ray and Kalyan Chakraborty, Certain eta-quotients and l-regular overpartitions, The Ramanujan Journal  57 (2022), no. 2, 453–470.

• Kalyan Chakraborty and Chiranjit Ray, Distribution of generalized mex-related integer partitions, Hardy–Ramanujan Journal 43 (2021), 122–128.

• D. S. Gireesh, Chiranjit Ray and C. Shivashankar, A new analogue of t-core partitions,  Acta Arithmetica 199.1 (2021), 1–22.

• Chiranjit Ray, Divisibility and distribution of 2l-regular overpartitions, Journal of Ramanujan Mathematical Society 36 (2021), no. 4, 331–337.

• Chiranjit Ray and Rupam Barman, Arithmetic properties of Andrews’ integer partitions with even parts below odd parts, Journal of Number Theory 215 (2020), 321–338.

• Chiranjit Ray and Rupam Barman, Arithmetic properties of cubic and overcubic partition pairs, The Ramanujan Journal 52 (2020), no. 2, 243–252.

• Zakir Ahmed, Rupam Barman and Chiranjit Ray, Congruences modulo powers of 2 for overpartition pairs into odd parts, Journal of the Korean Mathematical Society 57 (2020), no. 2, 471–487.

• Rupam Barman and Chiranjit Ray, Divisibility of Andrews’ singular overpartitions by powers of 2 and 3, Research in Number Theory 5 (2019), no. 22, 1–7.

• Chiranjit Ray and Rupam Barman, New congruences for overpartitions into odd parts, Integers: The Electronic Journal of Combinatorial Number Theory 18 (2018), A50, 1–20.

• Rupam Barman and Chiranjit Ray, Congruences for l-regular overpartitions and Andrews’ singular overpartitions, The Ramanujan Journal 45 (2018), no. 2, 497–515.

• Chiranjit Ray and Rupam Barman, Infinite families of congruences for k-regular overpartitions,  International Journal of Number Theory 14 (2018), no. 1, 19–29.

Book Chapter: Chiranjit Ray, Certain ℓ-regular partitions: a brief survey, Advances in Number Theory and Applied Analysis, World Scientific, June 2023.  (https://doi.org/10.1142/13314)

• A.K. Agarwal Award - 2024 by the Indian Mathematical Society  (https://indianmathsoc.org/Awards.html) 

Act as a Convenor:
We, jointly with Dr. Saudamini Nayak and Dr. Sudhansu Sekhar Rout, organized the International Conference on Lie Algebra and Number Theory (ICLANT - 2024)  on June  10-14, 2024  at the Department of Mathematics, NIT Calicut. This conference was funded by NBHM, SERB, CDC-IMU, and KSCSTE. For more updates visit  https://sites.google.com/view/iclant

Act as a Reviewer: 

• International Conference on Algorithms and Discrete Applied Mathematics (CALDAM) - 2020

• Journal of Number Theory - Elsevier

• Research in Number Theory - Springer

• Annals of Combinatorics - Springer

• Periodica Mathematica Hungarica - Springer

• The Ramanujan Journal - Springer

• Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas - Springer

• Journal of Integer Sequences

• MathSciNet - American Mathematical Society  (Reviewer Number: 151354)
  
  Article Number: MR4107768, MR4120750, MR4028985, MR4229493, MR4266606, MR4260172, MR4287579, MR4338471.

Recent Talks:

• Arithmetic properties of certain partition functions and modular forms, National Institute of Science Education and Research, Bhubaneswar, Odisha, India; April 02, 2019.

• Arithmetic properties of Andrews’ integer partitions with even parts below odd parts, Harish-Chandra Research Institute Prayagraj (Allahabad), Uttar Pradesh, India; September 12, 2019.

• Arithmetic properties of the integer partitions with even parts below odd parts and modular forms, International Conference on Class Groups of Number Fields and Related Topics - 2019; October 16–19, 2019.

• Arithmetic properties of certain partition functions and modular forms, International Conference on Special Functions & Applications - 2019; October 21–23, 2019.

• Certain partition functions and modular forms, Harish-Chandra Research Institute Prayagraj (Allahabad), Uttar Pradesh, India; July 10, 2020.

• Certain eta-quotients and l-regular overpartitions, Alumni Symposium on Mathematics and Computing - 2020, IIT Guwahati (Online); September 19–20, 2020.

• Divisibility and distribution of 2l-regular overpartitions, International Conference on Number Theory and Discrete Mathematics - 2020, Ramanujan Mathematical Society; December 11–12, 2020.

• On t-core partitions and its new analogy, Harish-Chandra Research Institute Prayagraj (Allahabad), Uttar Pradesh, India; July 13, 2021.

• Distribution and divisibility of the Fourier coefficients of certain Hauptmoduln; International Conference on Special Functions & Applications - 2023; November 02–04, 2024.

• On Ramanujan’s work and recent developments, National Mathematics Day, Jointly organized by the Center for Indian Knowledge System and the Department of Mathematics, NIT Calicut; December 22, 2023.

Research Scholar:

• Anakha V (joined on July 2024)

M.Sc. Students:

• Akash Samanta (M230604MA)

• Samir Ahmad (M231027MA)

Student under Summer Internship Program:

• Atheena S Kumar (IISER Pune)  --- Summer, 2024