New posts in banach-spaces

Banach spaces and their unit sphere

Example of different topologies with same convergent sequences

On every infinite-dimensional Banach space there exists a discontinuous linear functional.

Reinventing The Wheel - Part 2: The Lebesgue Integral

Norms on C[0, 1] inducing the same topology as the sup norm

Understanding the Frechet derivative

If the dual spaces are isometrically isomorphic are the spaces isomorphic?

Is it possible to characterize completeness of a normed vector space by convergence of Neumann series?

Proof of Pitt's theorem

Every separable Banach space is isomorphic to $\ell_1/A$ for some closed $A\subset \ell_1$

Equivalence of reflexive and weakly compact

Fréchet differentiability from Gâteaux differentiability

Motivation for abstract harmonic analysis

Is the weak topology sequential on some infinite-dimensional Banach space?

Prove that $X^\ast$ separable implies $X$ separable

How do I prove the completeness of $\ell^p$?

Space of Complex Measures is Banach (proof?)

Is the fundamental theorem of calculus independent of ZF?

How slow/fast can $L^p$ norm grow?

An application of Riesz' Lemma