KALYAN CHAKRABORTY is Professor at Harish-Chandra Research Institute (HRI), Allahabad, India, where he also obtained his Ph.D. in Mathematics. Professor Chakraborty was a postdoctoral fellow at IMSc, Chennai, and at Queen’s University, Canada, and a visiting scholar at the University of Paris VI, VII, France; Tokyo Metropolitan University, Japan; Universitá Roma Tre, Italy; The University of Hong Kong, Hong Kong; Northwest University and Shandong University, China; Mahidol University, Thailand; Mandalay University, Myanmar; and many more. His broad area of research is number theory, particularly class groups, Diophantine equations, automorphic forms, arithmetic functions, elliptic curves, and special functions. He has published more than 60 research articles in respected journals and two books on number theory, and has been on the editorial boards of various leading journals. Professor Chakraborty is Vice-President of the Society for Special Functions and their Applications.AZIZUL HOQUE is a national postdoctoral fellow at Harish-Chandra Research Institute (HRI), Allahabad. He earned his Ph.D. in Pure Mathematics from Gauhati University, Guwahati, in 2015. Before joining HRI, Dr. Hoque was Assistant Professor at the Regional Institute of Science and Technology, Meghalaya, and at the University of Science and Technology, Meghalaya. He has visited Hong Kong University, Hong Kong; Northwest University, China; Shandong University, China; Mahidol University, Thailand; and many more. His research has mostly revolved around class groups, Diophantine equations, elliptic curves, zeta values, and related topics, and he has published a considerable number of papers in respected journals. He has been involved in a number of conferences and received numerous national and international grants.PREM PRAKASH PANDEY is Assistant Professor at the Indian Institute of Science Education and Research (IISER) Berhampur, Odisha. Before that, he was a postdoctoral fellow at HRI, Allahabad, and NISER Bhubaneswar, Odisha. After completing his Ph.D. at the Institute of Mathematical Sciences (IMSc), Chennai, he spent a couple of years at Chennai Mathematical Institute (CMI), Chennai, as a visiting scholar. Dr. Pandey's interests include class groups of number fields, annihilators of class groups, Diophantine equations, and related topics. During his time at HRI, he worked on divisibility problems for class numbers of quadratic fields with Dr. Hoque and Prof. Chakraborty.
