Feyzi Başar was born in Erzurum, Turkey, in 1954. He serves as a Professor and the Head of the Mathematics Department, Faculty of Arts and Science, the Fatih University, Istanbul, Turkey. Başar received his Ph.D. degree from Ankara University, Ankara, Turkey, in 1986. He is mainly interested in functional analysis: summability, sequence spaces, FK spaces, bases, dual spaces, matrix transformations, spectrum and the fine spectrum of a linear operator over any given sequence space, the alpha, beta, gamma, and continuous duals and some topological properties of the matrix domains, sets of the sequences of fuzzy numbers, and multiplicative calculus. He is the author of about 90 papers and a monograph entitled "Summability theory and its applications" published in 2012 at the Bentham Science Publishers (e-books) in the international literature.
Biography Updated on 8 January 2013