Sanket Tikare Editor & Author

Ravi P. Agarwal
In the last fifty years, Ravi P. Agarwal has been one of the most famous, influential, and
successful figures in the field of Mathematics. In academia, people typically find their place
either as good researchers, mentors, editors, or managers. Ravi P. Agarwal has been able
to fulfill each of these roles. He is an excellent researcher, a very successful supervisor, the
founder of several esteemed scientific journals, and a perfect administrator. Ravi P. Agarwal
was born in Moradabad (India) on July 10, 1947. He earned his Master’s degree from Agra
University in 1969, ranking 2nd among over 500 in that year. In 1973, he earned his Ph.D.
(Mathematics) at the Indian Institute of Technology in Madras, India, which is one of the
highest-ranking universities in India. Since then, for the last 50 years, Dr. Agarwal has been
actively involved in research and pedagogical activities. He has made significant contributions
in various research fields, including Numerical Analysis, Differential and Difference
Equations, Inequalities, and Fixed Point Theorems. He is an excellent scholar, a dedicated
teacher, and a prolific researcher. He has published 50 research monographs, and more than
1,800 publications (with almost 700 mathematicians all over the world) in prestigious national
and international mathematics journals. Dr. Agarwal has previously worked either as
a full-time faculty member or as a visiting professor and scientist in universities in several
countries, including India, Germany, Italy, Canada, Australia, USA, Singapore, and Japan.
He has held several positions including Visiting Professor, Visiting Scientist, and Professor
at various universities in different parts of the world. Specifically, from 1980 to 1981, he was
awarded the most prestigious Alexander Von Humboldt Foundation Fellowship to work with
Prof. Dr. G. Hammerlin at the Ludwig-Maximilians Universitat, Munchen, Germany. From
1981 to 1982, he worked as a Visiting Professor with Prof. Roberto Conti, at the Instituto
Matematico, Firenze, Italy. He has been ranked as a Highly Cited Researcher for 14 consecutive
years, and has also been recognized as one of the “World’s Most Influential Scientific
Minds” in 2014 and 2015 by Thomas Reuters/Clarivate Analytics (world’s most prestigious
scientific organization). In 2021, he was listed among world’s top 2% Scientists by Stanford
University (https://1drv.ms/x/s!Ag-47qfFs 0OhgFG7xpiw6uqkDeM?e=K0hNpf), his ranking
is 6734 out of 186178. In 2022, Dr. Agarwal has been ranked 20th among 100 Top Mathematics
Scientists by Research.com (https://research.com/scientists-rankings/mathematics).
According to Google Scholar, Dr. Agarwal has been cited more than 70,000 times. On Math-
SciNet, his work has been cited more than 17,700 times by 7,400 scientists. Dr. Agarwal is
the recipient of several notable honors and awards, including Doctor Honoris Causa (2015 by
the University of Constanta, Romania), Professor Honoris Causa (2015 by the University of
Cluj, Romania), Honorary Doctorate (2017 by the University of Nis, Serbia), Doctor Honoris
Causa (2017 by Plovdiv University, Bulgaria), Doctor Honoris Causa (2017 by Constantin
Brancusi, University of Targu-Jiu, Romania), Doctor Honoris Causa (2017 by University of
Oradea, Romania, 2017), Doctor Honoris Causa (by 1 December 1918, University of Alba
Lulia, Romania), Honorary Doctorate (2019 by Istanbul Gelisim University, Turkey), and
Doctor Honoris Causa (2019 by Transilvania University of Brasov, Romania). He was also
nominated as a possible candidate for the Banco Bilbao Vizcaya Argentaria (BBVA) Foundation
Frontiers of Knowledge Award, an international award scheme recognizing significant contributions in the areas of scientific research and cultural creation. Many BBVA award
winners are Nobel laureates, including Stephen Hawkings. Florida Institute of Technology
(USA) and King Abdulaziz University have recently offered him a Distinguished University
Professorship of Mathematics. Dr. Agarwal has provided significant service to Texas A&M
University-Kingsville. Under his leadership during 2011-19, the Department of Mathematics
consistently progressed in education and preparation of students, and in new directions of
research. His overall impact to the university is considerable. Many scholars from different
countries, including China, Turkey, India, and Korea have come to work under his guidance.
The majority of these visiting post-doctoral scholars were sent to work under Dr. Agarwal
by their employing institutions for at least one year. Dr. Agarwal regularly presents his research
at invited talks/colloquiums (over 100 institutions worldwide). He has been invited to
give plenary/keynote lectures at international conferences in the USA, Russia, Italy, India,
Portugal, Poland, Spain, Vietnam, China, Taiwan, Korea, Malaysia, Thailand, Romania,
Saudi Arabia, Germany, Canada, Singapore, Turkey, Ukraine, Greece, and Japan. He has
served as Editor/Honorary Editor or Associate Editor in over 40 Journals and has published
20 books as editor. Dr. Agarwal has also organized International Conferences. In summary
of these few inadequate paragraphs, Dr. Ravi P. Agarwal is a visionary scientist, educator,
mentor, organizer, and administrator who has contributed to the world through his long
service, dedication, and tireless efforts.

Bipan Hazarika is currently a Professor in the Department of Mathematics at Gauhati
University, Guwahati, Assam, India. Before joining Gauhati University he worked as a Professor
at Rajiv Gandhi University, Rono Hills, Doimukh, Arunachal Pradesh, India from
2005 to 2018. He received his PhD degree from Gauhati University, Guwahati, India. His
main research interests includes the field of sequences spaces, summability theory, applications
fixed point theory, fuzzy analysis, function spaces of nonabsolute integrable functions.
He has published over 200 research papers in several international journals. He is regular
reviewer of more than 50 different journals published from Springer, Elsevier, Taylor and
Francis, Wiley, IOS Press, World Scientific, American Mathematical Society, De Gruyter,
etc. He has published books on Differential Equations, Differential Calculus and Integral
Calculus. He is an editorial board member of more than 5 International Journals and Guest
Editor of special the issue “Sequence spaces, Function spaces and Approximation Theory”,
Journal of Function Spaces. He has edited five books on different topics of mathematics,
out of them two are published by CRC Press and three are published by Springer.

Sanket Tikare is an Assistant Professor in the Department of Mathematics, at Ramniranjan
Jhunjhunwala College, Mumbai, India, which is an empowered autonomous college
affiliated with the University of Mumbai, India. He did his M.Sc. and Ph.D. in Mathematics,
both from Shivaji University, Kolhapur, India in the years 2008 and 2012 respectively. He
is specialized in Applied Analysis. His research area of interest includes time scale theory,
dynamic equations on time scales, differential equations, difference equations, fractional
equations. He has published several research papers in international journals. He has collaborated
with several eminent researchers from various institutes around the globe. He
is member of a life member of the Indian Mathematical Society, a life member of the International
Society of Difference Equations. Sanket Tikare is a regular reviewers of many
highly-reputed international journals. Moreover, he has written reviews on several articles
for Mathematical Reviews (AMS) and Zentralblatt Math (Germany). He has delivered invited
talks at 20 international conferences. He has also delivered several contributed talks
at various conferences in India and abroad.