New posts in Functional Analysis

Why don't we study 'metric vector spaces' on their own?

Unbounded operator such that $P^2=P$

Determine, by its action on an orthonormal basis, whether a linear operator can be continuous

Counterexample around Dini's Theorem

A problem in open mapping theoram from Kreyszig Section 4.12 Problem 6

Example where $(V^*)^*\neq V$?

Why is compactness required in Arzela Ascoli?

On the Equivalent Norms for Subspaces

Inequality involving maximum of continuous functions

Closed unit ball of an infinite-dimensional Banach space is not compact