Dr. Chiranjit Ray
Dr. Chiranjit Ray
Assistant Professor (Grade I)
Office Address:
Office Number 301, Department of Mathematics, National Institute of Technology Calicut, Kerala - 673601, INDIA
Ph.D: Indian Institutes of Technology Guwahati
Post-Doctoral Research: Indian Statistical Institute Delhi, Harish-Chandra Research Institute
Educational Qualifications
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Ph.D: Indian Institutes of Technology Guwahati
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Post-Doctoral Research: Indian Statistical Institute Delhi, Harish-Chandra Research Institute
Journals
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Chiranjit Ray, Distribution of Andrews' Singular Overpartitions Cp,1(n), Research in Number Theory 10 (2024), no. 10, 1–8.
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Chiranjit Ray, Distribution and divisibility of the Fourier coefficients of certain Hauptmoduln, Journal of Number Theory 248 (2023), 343-367.
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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.
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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.
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Chiranjit Ray and Kalyan Chakraborty, Certain eta-quotients and l-regular overpartitions, The Ramanujan Journal 57 (2022), no. 2, 453–470.
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Kalyan Chakraborty and Chiranjit Ray, Distribution of generalized mex-related integer partitions, Hardy–Ramanujan Journal 43 (2021), 122–128.
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D. S. Gireesh, Chiranjit Ray and C. Shivashankar, A new analogue of t-core partitions, Acta Arithmetica 199.1 (2021), 1–22.
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Chiranjit Ray, Divisibility and distribution of 2l-regular overpartitions, Journal of Ramanujan Mathematical Society 36 (2021), no. 4, 331–337.
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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.
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Chiranjit Ray and Rupam Barman, Arithmetic properties of cubic and overcubic partition pairs, The Ramanujan Journal 52 (2020), no. 2, 243–252.
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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.
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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.
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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.
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Rupam Barman and Chiranjit Ray, Congruences for l-regular overpartitions and Andrews’ singular overpartitions, The Ramanujan Journal 45 (2018), no. 2, 497–515.
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Chiranjit Ray and Rupam Barman, Infinite families of congruences for k-regular overpartitions, International Journal of Number Theory 14 (2018), no. 1, 19–29.
Books (Refereed)
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)
Professional Experience
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Assistant Professor at the Indian Institute of Information Technology Sri City (IIITS) (2022--2023)
Research Contributions
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My research interest lies in the area of Number Theory. Recently, I am working in partition theory using techniques from modular forms, analytic number theory, algebraic number theory, and combinatorics. Specifically, I am interested in the arithmetic and distribution properties of the Fourier coefficients of modular forms and hauptmoduls, and the combinatorial properties of theta functions. I am also interested in finding the connections with other areas of mathematics (like: Siegel cusp forms, Graph Theory ) with various types of partition functions.
Act as Reviewer:
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International Conference on Algorithms and Discrete Applied Mathematics (CALDAM) - 2020
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Research in Number Theory - Springer
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Annals of Combinatorics - Springer
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Periodica Mathematica Hungarica - Springer
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The Ramanujan Journal - Springer
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Journal of Integer Sequences
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MathSciNet - American Mathematical Society (Reviewer Number: 151354)
Recent Talks:
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Arithmetic properties of certain partition functions and modular forms; April 02, 2019, National Institute of Science Education and Research, Bhubaneswar, Odisha, India.
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Arithmetic properties of Andrews’ integer partitions with even parts below odd parts; September 12, 2019, Harish-Chandra Research Institute Prayagraj (Allahabad), Uttar Pradesh, India.
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Arithmetic properties of the integer partitions with even parts below odd parts and modular forms; October 16–19, 2019, International Conference on Class Groups of Number Fields and Related Topics - 2019.
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Arithmetic properties of certain partition functions and modular forms; October 21–23, 2019, International Conference on Special Functions & Applications - 2019.
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Certain partition functions and modular forms; July 10, 2020, Harish-Chandra Research Institute Prayagraj (Allahabad), Uttar Pradesh, India.
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Certain eta-quotients and l-regular overpartitions; September 19–20, 2020, Alumni Symposium on Mathematics and Computing - 2020, IIT Guwahati (Online).
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Divisibility and distribution of 2l-regular overpartitions; December 11–12, 2020, International Conference on Number Theory and Discrete Mathematics - 2020, Ramanujan Mathematical Society
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On t-core partitions and its new analogy; July 13, 2021, Harish-Chandra Research Institute Prayagraj (Allahabad), Uttar Pradesh, India.
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Distribution and divisibility of the Fourier coefficients of certain Hauptmoduln; International Conference on Special Functions & Applications - 2023