Prof. Abul Hasan Siddiqi has started his academic career after obtaining post-graduation in Mathematics in 1962 and subsequently Ph.D. degree in 1967. Since then he is actively engaged in teaching and research of diverse areas of mathematics and its applications such as Functional Analysis, Approximation Theory, Vibrational Inequalities, Wavelet and Gabor Analysis with Their Applications to Finance, Car Industry, Meteorological Data Analysis and Oil Industry. He has served the Aligarh Muslim University in different capacities between 1965 and 1998 such as Chairman, Department of Mathematics, Provost of a Prestigious Hall of Residence, Dean, Faculty of Science, Pro-Vice Chancellor and even as the Acting Vice Chancellor. He has held visiting assignments in different parts of the world including the USA, Canada, Germany, Saudi Arabia, and Oman. He has visited practically all industrialized nations for giving lectures and participating in International Conferences. He has actively collaborated with few distinguished German Professors such as Prof. Dr. Helmut Neunzert and Prof. Dr. Martin Brokate. He has been associated with Dr. Abdus Salam International Center of Theoretical Physics, Trieste, Italy (UNESCO Organization) since 1987 in different capacities such as short and long time visitor, Regular Associate, Senior Associate, ICTP Consultant to Turkey and 7 times as the guest of three former Directors and current Director. He has benefited a lot from these activities. He has acted as experts for selection committees of Professor in different Universities of India and Saudi Arabia (King Fahd University of Petroleum and Minerals).
He has acted as advisers to interview boards of the Union Public Service Commission, New Delhi, Rajasthan Public Service Commission, Jammu & Kashmir Public Service Commission, Bihar Public Service Commission and Madhya Pradesh Public Service Commission.
He has acted as expert for selecting candidates for Commonwealth Fellowships, Fulbright Fellowships and Hungarian Fellowships. He has supervised more than two dozen PhD students, who are holding now important positions in different parts of the world
He has published more than 100 research papers which have been extensively cited by other researchers in his field of specialization. He has published 4 post-graduate level books, publishers are Tata McGraw Hill, Marcel Dekker New York (now Chapman & Hall/CRC Press, Taylor Francis Group), Kluwer Academic Publishers (now Springer) and Taylor and Francis. He has edited 8 International Conference Proceedings published by Longman/CRC, London; Kluwer Academic Publishers, Boston-Dordrecht-London; Narosa, Delhi-London; McMillan India, Bangalore-Delhi-Madras; World Scientific Publisher, Singapore; American Institute of Physics, USA and Anamaya, New-Delhi. He has been Visiting Professor in Tabriz University, Iran(December 1973-August1975); Constant University, Algeria (1980-1983);Kaiserslautrn University, Germany (April 1997-October 1997); McMaster University, Canada (March1996-May1996). He has visited various Universities of Europe and North America to deliver invited talk such as Tennessee University, USA; Concordia University, Canada; Laval University, Canada; Erlangen University, Manheim University, Trier University, Heidelberg University, Darmstadt University (All Germany); Rome University, Pavia University, Pisa University etc. (all Italy); University of Brussel, Belgium; Nice-University, Paris University (Orsay Centre), both France.
He is a member of the International Council of Industrial and Applied Mathematics since 1999. He is the recipient of the German Academic Exchange Programme Fellowship thrice. He has been Professor of Mathematics at the King Fahd University of Petroleum and Minerals (KFUPM),Dhahran Saudi Arabia during the period 1998-2007.He was also Director of a research Lab for Wavelet and Variational Methods in KFUPM.
He has been Visiting Consultant to the Sultan Qaboos University, Muscat, Oman in 2009,2010 and 2011.He has been research project consultant of famous oil company, ARAMCO, Dhahran, Saudi Arabia and research projects of Sultan Qaboos University, Oman and Koceali University, Turkey and Malaysian Institute of Micro-Electronic Systems (MIMOS), Malaysia in last couple of years.
He is currently Editor-in-Chief of Industrial and Applied Mathematics series of Springer. He is also the Editor-in-Chief of the Indian Journal of Industrial and Applied Mathematics.