About the Author

P. R. Vittal was a postgraduate professor of Mathematics at Ramakrishna Mission Vivekananda College, Chennai, from where he retired as Principal in 1996. He was a visiting professor at Western Carolina University, USA, and has visited a number of universities in the USA and Canada in connection with his research work. He is, at present, a visiting professor at the Department of Statistics, University of Madras; Institute of Chartered Accountants of India, Chennai; The Institute of Technology and Management, Chennai; and National Management School, Chennai, besides being a research guide in Management Science at BITS, Ranchi.

Professor Vittal has published 30 research papers in journals of national and international repute and ...

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