Newbetuts
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New posts in operator-theory
Example of a self-adjoint bounded operator on a Hilbert space with empty point spectrum
functional-analysis
operator-theory
hilbert-spaces
spectral-theory
Positive operator on a complex Hilbert space is symmetric?
functional-analysis
operator-theory
Spectral measure of the multiplication operator
functional-analysis
operator-theory
spectral-theory
Fourier transform as a Gelfand transform
functional-analysis
fourier-analysis
operator-theory
banach-algebras
Spectral Measures: Square Root
functional-analysis
operator-theory
hilbert-spaces
Strong convergence of operators
real-analysis
analysis
functional-analysis
operator-theory
banach-spaces
How to prove Halmos’s Inequality
functional-analysis
inequality
hilbert-spaces
operator-theory
banach-algebras
What is a Form Domain of an Operator?
functional-analysis
operator-theory
If the image of an orthonormal basis is bounded, is the linear operator also bounded?
functional-analysis
operator-theory
hilbert-spaces
fact used in C*-algebra proofs.
functional-analysis
analysis
operator-theory
spectral-theory
c-star-algebras
finite dimensional range implies compact operator
functional-analysis
operator-theory
normed-spaces
compact-operators
Continuity of the adjoint map in various operator topologies
functional-analysis
operator-theory
Is the multiplier algebra $M(K(H)\otimes C(X))$ isomorphic to $M(K(H))\otimes C(X)$?
functional-analysis
operator-theory
c-star-algebras
quantum-groups
$C^*$-homomorphisms and compact $T_2$ spaces
abstract-algebra
functional-analysis
operator-theory
operator-algebras
spectral-theory
Prove that $A$ is bounded operator on $\ell^p$ and find $\| A\|$
functional-analysis
operator-theory
Infinite-dimensional inner product space: if $A \geq 0$ and if $\langle Ax, x\rangle = 0$ for some $x$, then $Ax = 0$.
operator-theory
inner-products
adjoint-operators
self-adjoint-operators
Nonnegativity of integral, integral operator
integration
operator-theory
integral-inequality
CFT's vs Vertex Operator Algebras
category-theory
operator-theory
mathematical-physics
quantum-field-theory
conformal-field-theory
$5$ questions on the definition of the Gelfand triple
analysis
functional-analysis
operator-theory
hilbert-spaces
distribution-theory
Norms of linear maps
linear-algebra
matrices
functional-analysis
operator-theory
operator-algebras
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