Introduction classically, functional analysis is the study of function spaces and linear operators between them Lax, john wiley & sons (2002), referred to as \lax below Much of the material and inspiration came from larry brown’s lectures on functional analysis at purdue university in the 1990s, and some came from my reed thesis 1987
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Adjoints in hilbert spaces recall that the dot product on rn is given by x y = xty, while the dot product on cn is
Functional, so that by lemma 2.14 we learn that is continuous
Hence is a topological homeomorphism, and since we have assumed it is a vector space isomorphism, we conclude all together it is a tvs isomorphism C y ⊆ y y c ⊆ y x ∈ y c next, for the first property, we want to show that , which is equivalent to. As such it established a key framework for the development of modern analysis. Comments and course information these are lecture notes for functional analysis (math 920), spring 2008
The text for this course is functional analysis by peter d
