Elements Of Functional Analysis And Operator Theory

This book is designed as a two-semester text. The first semester is devoted to Banach and Hilbert spaces, while the second semester focuses on operator theory.

The book aims not only to present the core concepts in a clear and concise manner, but also to enrich the reader’s understanding through numerous illustrations and a wide range of exercise problems. Special focus has been laid on important theorems like the open map theorem, closed graph theorem, Hahn-Banach theorems, and the p…