Santosh Kumar Upadhyay is Professor at the Department of Mathematical Sciences at the Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh, India. With more than 27 years of research and teaching experience, his areas of research interest are distribution theory, pseudo-differential operators, and wavelet analysis. With more than 100 papers published in various national and international journals, he has delivered many lectures in national and international conferences, workshops and training programs in India and abroad. Jay Singh Maurya is Assistant Professor at the Department of Mathematical Sciences at Galgotia University, Greater Noida, Gautam Buddha Nagar, Uttar Pradesh, India. He has done Ph.D. in Mathematics at the Department of Mathematical Sciences, Indian Institute of Technology (Banaras Hindu University), Varanasi, Uttar Pradesh, India, in 2022, and M.Sc.

(Mathematics) from the India Institute of Technology Kanpur, Uttar Pradesh, India. His area of specialization is wavelet analysis, distribution theory, applied harmonic analysis and microlocal analysis. He has devised the construction of the wavelet inversion formula and its associated results on various functional spaces.