New posts in normed-spaces

Sup Norm and Uniform Convergence

Prove that $\exists c > 0$ such that $||f||_2 \le c ||T(f)||_{\infty}$

Operator norm on product space

Operator norm calculation for simple matrix [closed]

Moore-Penrose pseudoinverse and the Euclidean norm

Equivalence of norms proof

Are open balls in the topological dual space $A^*$ weak-* open?

1 and 2 norm inequality

Proof of Matrix Norm (Inverse Matrix)

Royden's proof that $L^{p_2}\subseteq L^{p_1}$ if $p_1<p_2$

If the entries of a positive semidefinite matrix shrink individually, will the operator norm always decrease?

Show that $F+G$ is closed when $G$ a closed subspace of normed space $E$ and $F$ a finite dimensional subspace of $E$.

Show that the norm of the multiplication operator $M_f$ on $L^2[0,1]$ is $\|f\|_\infty$

Limit definition of pseudoinverse: $A^+ b$ is as close as possible to $y$ in terms of the Euclidean norm $\lVert Ax-b\rVert_2$

Multiplicative norm on $\mathbb{R}[X]$.

Trace Norm properties

Isomorphisms between Normed Spaces

Bounds on expectation of Gaussian random vectors

The definition of locally Lipschitz

A Banach space that is not a Hilbert space