Categories
Tags
Operator-theory
New post in Operator-theory
Is 0 an eigenvalue of the right shift operator?
February 6th, 2020
functional-analysis
linear-transformations
operator-theory
analysis
Commutativity of Convolution in higher dimensions
August 1st, 2022
operator-theory
convolution
integral-transforms
integration
uniform convergence on compact subsets of the linear,continuous and uniformly bounded operators.
August 1st, 2022
uniform-convergence
normed-spaces
operator-theory
functional-analysis
Estimate on the norm of a self-adjoint operator
August 1st, 2022
functional-analysis
operator-theory
hilbert-spaces
Projection operator for non-orthonormal basis
August 1st, 2022
inner-products
functional-analysis
operator-theory
hilbert-spaces
Taylor expansion for matrices
August 1st, 2022
operator-algebras
taylor-expansion
matrices
operator-theory
Equivalent Norms on $\mathbb{R}^d$ and a contraction
August 1st, 2022
operator-theory
calculus
functional-analysis
metric-spaces
Determining the domain of the adjoint of $T = i\frac{d}{dx}$ on $C^1[0,1] \subseteq L^2[0,1]$
August 1st, 2022
functional-analysis
differential-operators
adjoint-operators
unbounded-operators
operator-theory
Formal definition of direct sum of operators.
August 1st, 2022
direct-sum
notation
reference-request
functional-analysis
operator-theory
Prove that the product of two positive linear operators is positive if and only if they commute.
August 1st, 2022
inner-products
operator-theory
linear-algebra
positive-definite
Confusion about the definition of self adjoint and formally self-adjoint
August 1st, 2022
functional-analysis
operator-theory
Spectral Measures: Stone's Formula
April 13th, 2020
operator-theory
spectral-theory
functional-analysis
hilbert-spaces
spectrum of right shift operator on $\ell^2(\mathbb{Z})$
August 1st, 2022
functional-analysis
operator-theory
spectral-theory
Weaker Assumption for Convergence of the Neumann series
August 1st, 2022
reference-request
functional-analysis
spectral-theory
operator-theory
$T$ compact operator implies that every weakly convergent sequence $x_n$ implies strong convergence of $Tx_n$
August 1st, 2022
spectral-theory
functional-analysis
operator-theory
analysis
Example: Operator with empty spectrum
March 20th, 2022
spectral-theory
hilbert-spaces
operator-theory
functional-analysis
Tensor product of Hilbert Spaces
August 1st, 2022
operator-theory
linear-algebra
abstract-algebra
analysis
What is the precise definition of predual
July 24th, 2020
linear-algebra
real-analysis
banach-spaces
operator-theory
Finding the norm of this upper triangular matrix
August 1st, 2022
linear-algebra
matrices
functional-analysis
operator-theory
operator-algebras
Example of normal operator on infinite-dimensional Hilbert spaces
August 1st, 2022
functional-analysis
normal-operator
operator-theory
$T^*T=TT^*$ and $T^2=T$. Prove $T$ is self adjoint: $T=T^*$
February 10th, 2020
matrices
operator-theory
inner-products
linear-algebra
The image of an bounded and linear operator between two banach spaces is closed if the image is finite codimension?
August 1st, 2022
operator-theory
functional-analysis
banach-spaces
Prove that $T$ is an orthogonal projection
June 10th, 2020
linear-algebra
inner-products
operator-theory
Show the Volterra Operator is compact using only the definition of compact
April 27th, 2022
functional-analysis
compact-operators
hilbert-spaces
operator-theory
What is the dual space in the strong operator topology?
September 2nd, 2020
operator-theory
hilbert-spaces
banach-spaces
functional-analysis
Compact operator on $l^2$
January 17th, 2022
compact-operators
functional-analysis
operator-theory
hilbert-spaces
Transpose and adjoint of a linear operator
June 15th, 2020
linear-algebra
functional-analysis
operator-theory
operator-algebras
Bounded operators that are not closed.
August 1st, 2022
functional-analysis
operator-theory
Semi-finite trace on a von Neumann algebra: Equivalent definitions
August 1st, 2022
trace
von-neumann-algebras
functional-analysis
operator-theory
operator-algebras
Are there nonlinear operators that have the group property?
December 11th, 2020
lie-groups
operator-theory
vector-spaces
←
1
2
3
4
5
6
7
8
9
10
11
…
16
17
→