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New posts in banach-algebras
For which $s\in\mathbb R$, is $H^s(\mathbb T)$ a Banach algebra?
analysis
functional-analysis
fourier-analysis
sobolev-spaces
banach-algebras
$C_c(X)$ is complete, then $X$ is compact
functional-analysis
banach-algebras
Is every Hilbert space a Banach algebra?
functional-analysis
hilbert-spaces
harmonic-analysis
banach-algebras
Some examples in C* algebras and Banach * algebras
functional-analysis
examples-counterexamples
operator-algebras
banach-algebras
von-neumann-algebras
Can $ {L^{1}}(G) $ be a $ C^{*} $-algebra?
functional-analysis
lp-spaces
c-star-algebras
banach-algebras
Does the Banach algebra $L^1(\mathbb{R})$ have zero divisors?
real-analysis
functional-analysis
fourier-analysis
banach-algebras
Why are compact operators 'small'?
functional-analysis
operator-theory
operator-algebras
banach-algebras
Extension of character in Banach algebras
functional-analysis
harmonic-analysis
banach-algebras
c-star-algebras
Wiener's theorem in $\mathbb{R}^n$
fourier-analysis
harmonic-analysis
banach-algebras
Correspondence between maximal ideals and multiplicative functionals of a non unital, commutative Banach algebra.
functional-analysis
operator-algebras
banach-algebras
Fourier transform as a Gelfand transform
functional-analysis
fourier-analysis
operator-theory
banach-algebras
Dual space of $\mathcal{C}^n [a,b]$.
functional-analysis
banach-spaces
banach-algebras
dual-spaces
complete-spaces
Quaternions as a counterexample to the Gelfand–Mazur theorem
functional-analysis
banach-algebras
How to prove Halmos’s Inequality
functional-analysis
inequality
hilbert-spaces
operator-theory
banach-algebras
Is $L^2(\mathbb{R})$ with convolution a Banach Algebra?
functional-analysis
fourier-analysis
convolution
banach-algebras
Pure states on commutative C* algebra are exactly the characters - elementary proof
functional-analysis
c-star-algebras
banach-algebras
$C_{c}(X)$ is complete. then implies that $X$ is compact. [closed]
real-analysis
general-topology
functional-analysis
banach-algebras
Is the product rule true in a Banach algebra?
functional-analysis
operator-theory
banach-algebras
functional-calculus
semigroup-of-operators
Prove that the set of invertible elements in a Banach algebra is open
general-topology
vector-spaces
inverse
banach-algebras
If $(I-T)^{-1}$ exists, can it always be written in a series representation?
functional-analysis
operator-theory
banach-algebras
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