New posts in normed-spaces

What does $\|u\|$ mean?

linear-algebra vector-spaces vectors normed-spaces

Norm equivalence in a Banach space [closed]

functional-analysis normed-spaces banach-spaces open-map

Product norm on infinite product space

real-analysis normed-spaces

Subsequences of Basis

functional-analysis normed-spaces banach-spaces schauder-basis

What does this (double absolute value like) notation mean?

linear-algebra notation vectors normed-spaces

Prove that the nuclear norm is convex

matrices convex-analysis normed-spaces matrix-norms nuclear-norm

Showing that the operator is bounded and find its norm.

real-analysis functional-analysis operator-theory normed-spaces lp-spaces

Is there such thing as an unnormed vector space?

functional-analysis vector-spaces normed-spaces locally-convex-spaces

Infinity matrix norm example

matrices infinity normed-spaces

Does convexity of a 'norm' imply the triangle inequality?

functional-analysis analysis vector-spaces convex-analysis normed-spaces

Showing that matrix $Q=UV^T$ is the nearest orthogonal matrix to $A$.

linear-algebra matrices optimization normed-spaces procrustes-problem

Is an NVS complete iff it is non meagre?

linear-algebra general-topology functional-analysis normed-spaces baire-category

Is $d(x,y)=\frac {\|x-y\|} {\sqrt {1+\|x\|^{2}}\sqrt {1+\|y\|^{2}}}$ a metric on a normed linear space?

metric-spaces normed-spaces

How to prove that a finite-dimensional linear subspace is a closed set

general-topology banach-spaces normed-spaces

Simple function approximation of a function in $L^p$

real-analysis functional-analysis normed-spaces

Show that $L^p$ "space" for $0<p<1$ does not define a norm

normed-spaces lp-spaces

Why is this true: $\|x\|_1 \le \sqrt n \cdot \|x\|_2$?

inequality normed-spaces

Is closure of linear subspace of X is again a linear subspace of X??

vector-spaces normed-spaces

proving that the quotient linear map of a continuous linear map is also continuous (normed spaces)

real-analysis functional-analysis normed-spaces

Finding inner product and expression for norm

analysis normed-spaces hilbert-spaces inner-products