Operator Theory von Daniel Alpay/Harald Woracek

A one-sentence definition of operator theory could be: The study of (linear) continuous operations between topological vector spaces, these being in general (but not exclusively) Fréchet, Banach, or Hilbert spaces (or their duals). Operator theory is thus a very wide field, with numerous facets, both applied and theoretical. There are deep connections with complex analysis, functional analysis, mathematical physics, and electrical engineering, to name a few. Fascinating new applications and directions regularly appear, such as operator spaces, free probability, and applications to Clifford analysis. In our choice of the sections, we tried to reflect this diversity. This is a dynamic ongoing project, and more sections are planned, to complete the picture. We hope you enjoy the reading, and profit from this endeavor.

Editorial Board: - Daniel Alpay (Editor-in-Chief), Earl Katz Chair in Algebraic System Theory, Department of Mathematics, Ben-Gurion University of the Negev, Be'er Sheva, Israel Joseph A. Ball, Department of Mathematics, Virginia Tech, Blacksburg, VA, USA Anton Baranov, Department of Mathematics and Mechanics, St. Petersburg State University, Pedrodvorets, Russia Fabrizio Colombo, Dipartimento di Matematica, Politecnico di Milano, Milano, Italy Palle E.T. Jorgensen, Department of Mathematics, The University of Iowa, Iowa City, IA, USA Matthias Langer, Department of Mathematics and Statistics, University of Strathclyde, Glasgow, Scotland, UK Mamadou Mboup, Université de Reims Champagne Ardenne, CReSTIC UFR des Sciences Exactes et Naturelles Moulin de la Housse, Reims, France Irene Sabadini, Dipartimento di Matematica, Politecnico di Milano, Milano, Italy Michael Shapiro, Departamento de Matemáticas, Escuela Superior de Física y Matemáticas, del Instituto Politécnico Nacional, Mexico City, Mexico Franciszek Hugon Szafraniec,Instytut Matematyki, Uniwersytet Jagiellónski, Kraków, Poland Harald Woracek, Institut for Analysis and Scientific Computing, Vienna University of Technology, Vienna, Austria Prof. Daniel Alpay is a faculty member of the department of mathematics at Ben-Gurion University, Beer-Sheva, Israel. He is the incumbent of the Earl Katz Family chair in algebraic system theory. He has a double formation of electrical engineer (Telecom Paris, graduated 1978) and mathematician (PhD, Weizmann Institute, 1986). His research includes operator theory, stochastic analysis, and the theory of linear systems. Daniel Alpay is one of the initiators and responsible of the dual track electrical-engineering mathematics at Ben-Gurion University. Together with co-authors, he has written two books and close to 190 research papers, and edited ten books of research papers.