Operator theory

These lecture notes are based on the courses "Operator Theory" developed atKing's College London by G. Barbatis, E.B. Davies and J.A. Erdos, and"Functional Analysis II" developed at the University of Sussex by P.J. Bushell,D.E. Edmunds and D.G. Vassiliev. As usual, all errors are entirely my responsibility. The same applies to the accompanying exercise sheets.