Functional Analysis with Applications

B. Choudhary9788122419436, 8122419437, 9788122427042

The author presents the essentials of functional analysis and discusses basic metric and topological concepts. Four fundamental theorems are presented – Functional Analysis-Hahn- Banach Theorem, Open Mapping Theorem, Closed Graph Theorem, and Banach-Steinhaus Theorem, and basic results on operators in Banach and Hilbert spaces and Spectral theory are also included. There are numerous exercises.