Week Description
week 2 Chapter 1 in Bowers & Kalton Review of basic notions on normed spaces, additional material on series and bases in Banach spaces (absolutely convergent series, Schauder basis, compete/total sets, isometries between normed spaces)
week 3 Quotient normed vector spaces, dual spaces in the finite dimensional setting
week 4 Chapter 2 in Bowers & Kalton duals of sequence spaces and Zorn's lemma
week 5 Chapter 3 in Bowers & Kalton Hahn-Banach general, normed and complex case, proof, natural embedding, reflexive spaces
week 6 Chapter 3 in Bowers & Kalton supporting functional, separation of proper closed subspaces from points, annihilator, pre-annhilator, adjoint for operators between normed spaces
week 7 Chapter 4 in Bowers & Kalton Theorem of Baire, Uniform Boundedness Principle, strong contrapostive formulation of the Uniform Boundedness Principle, Banach-Steihnhaus theorem, Dirichlet kernel
week 8 Chapter 4 in Bowers & Kalton Existence of divergent Fourier series, Open mapping theorem, Bounded inverse theorem, closed range theorem, equivalence of norms theorem, closed maps and closed graph
week 9 Chapter 5 in Bowers & Kalton, Vershynin notes weak and weak* convergence, basics of topological vector spaces from Bowers-Kalton without proofs (Minkowski functional, seminorms, locally convex,…), weak and weak* topology
week 10 Chapter 5 in Bowers & Kalton, Vershynin notes weak and weak* compactness and its sequentially compactness versions, Banach-Alaoglu, norm compactness of unit balls in normed spaces as a characterization of finite-dimensional vector spaces
week 11 Chapter 5 in Bowers & Kalton, Vershynin notes weak and weak* compactness and its sequentially compactness versions, Banach-Alaoglu, norm compactness of unit balls in normed spaces as a characterization of finite-dimensional vector spaces, weak solutions, theorem of Eberlein-Smuylan
week 12 Chapter 6 compact operators, totally bounded sets, basic properties of compact operators, uniform limits of compact operators give compact operators (converse for Hilbert spaces), compactness of multiplication operators on sequence spaces and integral operators with continuous kernels
week 13 Chapter 6, 7 Rank-nullity theorem for compact operators, spectral theorem for compact operators on Banach spaces, and the version for Hilbert spaces, integral operators, Hilbert-Schmidt operators (integral operators), Fredholm alternative, Fredholm operators
week 14 Vershynin, Sections on Spectral theory Spectrum of a bounded operator on a normed space, point, continuous and residual spectrum, resolvent set, Neumann's series, spectrum is compact, spectrum is non-empty, properties of the resolvent operator, spectral radius formula
2017-05-30, Franz Luef