New posts in Banach Algebras

Is the Banach Algebra generated by a separable subset separable?

An algebra with a strictly positive state + condition ? to become a C$^*$-algebra.

Trouble with the proof of Proposition 4.3.18 of Pedersen's Analysis Now

Why is $f(t) = e^{ta}$ differentiable in a unital Banach algebra?

Commutative unital Banach algebra not isomorphic to $C(X)$ for some compact Hausdorff space $X$

Is the limit of the spectral radius the spectral radius of the limit?

$C_c(X)$ is complete, then $X$ is compact

Are two compact Hausdorff spaces homeomorphic if their algebras of continuous functions are isomorphic?

Correspondence between maximal ideals and multiplicative functionals of a non unital, commutative Banach algebra.

Spectrum of idempotent element