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15
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On an operator inequality

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#operator-theory #power-series #hilbert-spaces #svd #adjoint-operators
77
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Core domain for unbounded operator

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#functional-analysis #operator-theory #hilbert-spaces #unbounded-operators
47
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is this (unbounded) operator normal?

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#hilbert-spaces #adjoint-operators #self-adjoint-operators #unbounded-operators #normal-operator
17
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compact operatos on separable Hilbert spaces with group action are homotopyequivalent?

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#operator-theory #hilbert-spaces #group-actions
102
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If a Hilbert space $H$ has an ONB consisting of the eigenfunctions of an operator $A$, is $Av=\sum_{j} l_j\left<v,e_j\right>e_j$ always true?

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#linear-algebra #functional-analysis #operator-theory #hilbert-spaces #diagonalization
47
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Why is this L2 a (closed) subspace of another L2?

Published on
#measure-theory #hilbert-spaces #conditional-expectation
114
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Real positive definite not self-adjoint operator

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#functional-analysis #operator-theory #hilbert-spaces
73
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For a linear operator $T\in L(X, Y)$, when $T(B(X))=B(Y)$?

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#functional-analysis #normed-spaces #operator-theory #hilbert-spaces #banach-spaces
20
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Inclusion of G-Hilbert spaces induce homotopy equivalence after stabilization?

Published on
#hilbert-spaces #homotopy-theory #c-star-algebras
32
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A weakly continuous, Hilbert space-valued mapping on $[0,1]$ that decreases in the norm is right-continuous?

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#real-analysis #functional-analysis #hilbert-spaces
47
Views

Hilbert space to bound a linear operator from span of monomials into l2

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#functional-analysis #polynomials #operator-theory #hilbert-spaces
84
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Parseval's (Plancherel's) identity for Hilbert space-valued operator.

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#functional-analysis #hilbert-spaces #parsevals-identity
18
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Question about prove of characterization of projection

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#functional-analysis #hilbert-spaces #orthogonality
46
Views

Do sections of a vector bundle over manifold form a Hilbert space?

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#hilbert-spaces #smooth-manifolds #vector-bundles
78
Views

Doubt w/ Inner Products: Ramakrishnan's "Fourier Analysis on Number Fields", Section 3.2

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#real-analysis #linear-algebra #hilbert-spaces #inner-products

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