New posts in operator-algebras

No trace on $B(H)$ if $H$ is infinite dimensional

Showing that $\lim \sup\limits_{\gamma} \left \|a - a e_{\gamma} \right \| \leq \|a - b\|$ for all $a \in A$ and $b \in J.$

Applications of Banach Algebras and Operator Algebras

Showing that $A/J \cong \mathbb C.$

What is the use of Spectral Theorem?

Show that $\phi$ and $\psi$ are not equivalent.

free group factor- do the basis of generators strongly converge to each other?

Is ultraproduct of separable Hilbert space is separable?

Extending a $C^*$-algebras morphism to the multipliers

Showing invertibility of bounded operators.

Some examples in C* algebras and Banach * algebras

C$^{*}$-algebra acting irreducibly on the finite-dimensional space $\mathbb{C}^{n}$ must be $M_{n}(\mathbb{C})$

Why are compact operators 'small'?

Sufficient condition for a *-homomorphism between C*-algebras being isometric

How generalize the bicommutant theorem?

Eigenvalues of a linear operator from $\mathbb R\to\mathbb C$

Maximal ideal space of $c_{\mathcal{U}}$

K-theory for non-separable C*-algebras

Epimorphisms of locally compact spaces

Components of Linear Operators