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Trinity College Dublin

TCD Mathematics

School of Mathematics

Mathematics MA3422, Functional Analysis II

Notes

Some (not all) parts of the course notes will be in the form of a handout or will be available here. All will be in PDF format.

Chapter 1, Hilbert Spaces
Definition and examples. Orthonormal bases. Parallelogram Identity. Spaces of operators or functionals. Dual of a Hilbert space. Algebra of operators.
Chapter 2, Main theorems on Banach spaces
Direct sum of two normed spaces. Closed graph theorem. Uniform boundedness theorem. Zorn's lemma. Hahn-Banach Theorem. Definition of reflexivity.
Chapter 3, Weak topologies and Tychonoff's theorem
Locally convex topological vector spaces. Weak and weak*-topologies.