New posts in banach-spaces

The space $c_0$ of sequences that converge to 0 is not reflexive

$\ell_1$ and unconditional convergence

How to deduce open mapping theorem from closed graph theorem?

Proving that $\int_0^1 f(x)e^{nx}\,{\rm d}x = 0$ for all $n\in\mathbb{N}_0$ implies $f(x) = 0$

The group of invertible linear operators on a Banach space

Showing a set is nowhere dense in $C([0,1])$

Why isn't this a counterexample of Banach-Steinhaus theorem?

Isomorphisms between Normed Spaces

Weak limit of an $L^1$ sequence

Equivalent definitions of unconditional convergence

A Banach space that is not a Hilbert space

Norm equivalence in a Banach space [closed]

The space $C^0([0;1],\mathbb{R})$ of all continuous, real-valued functions on $[0,1]$ is not reflexive.

What is the predual of $L^1$

Subsequences of Basis

Why is the space of surjective operators open?

Every multiplicative linear functional on $\ell^{\infty}$ is the limit along an ultrafilter.

$c$ and $c_0$ are not isometrically isomorphic

Liouville's theorem for Banach spaces without the Hahn-Banach theorem?

Spectrum for a bounded linear operator and its adjoint on a Banach space are same.