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Vishnu Narayan Mishra Received his PhD. at &nbsp;I.I.T. Roorkee. He is currently working as Associate Professor of Mathematics at Dept. of Mathematics, Indira Gandhi National Tribal University, Lalpur, Amarkantak 484 887, India. He got more than 12 scientific excellence awards. He has published more than 150 publications. His research interests are Linear Positive Operators, Approximation theory, Measure of non-compactness, Functional Analytic aspects in Summability, Fourier Analysis, Quantum Calculus, Asymptotic expansions, Fixed point theory and applications in dynamic programming, Inequalities, Non-linear analysis, Special Functions, Variational inequality, q-series and q-polynomials and Operator Theory, Fractals and Wavelets, Signal Analysis and Image processing.