New posts in Functional Analysis

Is every probability measure in the line induced by a random variable?

Is differentiation as a map discontinuous?

Is it true that every Banach space has Bolzano Weierstrass property?

Gelfand-Kolmogorov Theorem for the space $C(X)$ with compact $X$: ring vs algebra version.

Trying to visualize the hierarchy of mathematical spaces

Minimize $q\mapsto\int\frac{(pf)^2}q\:{\rm d}\lambda$ subject to $\int q\:{\rm }\lambda=1$ using the method of Lagrange multipliers

Covering a set with $N$ balls of common minimal(!) radius (Existence of such a covering)

Spectrum vs eigenvalues

A point such that can't be "stably" approximated

Matrices with a certain property