New posts in normed-spaces

Find function that minimizes the distance from $f$ to $g$ with respect to the $L_2$-norm

linear-algebra analysis normed-spaces hilbert-spaces orthonormal

If every two-dimensional (vector) subspace of a normed space is an inner product space, then so is that normed space

functional-analysis normed-spaces inner-products

A problem regarding neighborhood of a point in Normed linear space

real-analysis normed-spaces

Hypervolume of a $N$-dimensional ball in $p$-norm

banach-spaces normed-spaces

Continuity of a bilinear form with respect to weak$^*$ topology [closed]

normed-spaces product-space

How are norms different from absolute values?

Prove $\frac{1}{\sqrt{n}}\|A\|_{\infty} \leq\|A\|_{2} \leq \sqrt{m}\|A\|_{\infty} $

linear-algebra inequality normed-spaces matrix-norms equivalent-metrics

$L^1_{\text{loc}}$, Frechet Space and norm-distance

functional-analysis normed-spaces lp-spaces

How to prove $\lvert \lVert x \rVert - \lVert y \rVert \rvert \overset{\heartsuit}{\leq} \lVert x-y \rVert$?

linear-algebra inequality vector-spaces normed-spaces

How to develop an intuitive feel for spaces

functional-analysis vector-spaces metric-spaces normed-spaces intuition

Normed vector spaces over finite fields

vector-spaces normed-spaces finite-fields

Question on Stein and Shakarchi's proof of Proposition 2.5 ($f(x-h) \rightarrow f$ in $L^1$ as $h \rightarrow 0$)

real-analysis analysis normed-spaces uniform-convergence pointwise-convergence

Does every $\mathbb{R},\mathbb{C}$ vector space have a norm?

functional-analysis topological-vector-spaces normed-spaces

The openness of the set of positive definite square matrices

matrices functional-analysis normed-spaces

Sum of closed subspaces of normed linear space

vector-spaces normed-spaces

Understanding the properties and use of the Laplacian matrix (and its norm)

linear-algebra graph-theory normed-spaces

Boundedness and pointwise convergence imply weak convergence in $\ell^p$

functional-analysis convergence-divergence normed-spaces

If every absolutely convergent series is convergent then $X$ is Banach

functional-analysis banach-spaces normed-spaces absolute-convergence

Finite-dimensional subspace normed vector space is closed

real-analysis general-topology functional-analysis vector-spaces normed-spaces

Are isometric normed linear spaces isomorphic?

functional-analysis normed-spaces