This volume is dedicated to the memory of Israel Glazman, an outstanding
personality and distinguished mathematician, the author of many
remarkable papers and books in operator theory and its applications. The
present book opens with an essay devoted to Glazman's life and
scientific achievements. It focusses on the areas of his unusually wide
interests and consists of 18 mathematical papers in spectral theory of
differential operators and linear operators in Hilbert and Banach
spaces, analytic operator functions, ordinary and partial differential
equations, functional equations, mathematical physics, nonlinear
functional analysis, approximation theory and optimization, and
mathematical statistics. The book gives a picture of the current state
of some important problems in areas of operator theory and its
applications and will be of interest to a wide group of researchers
working in pure and applied mathematics.