Newbetuts

Can the sum of two measurable functions be non-measurable if they are valued in a general normed space instead of $ \mathbb{R} $?

Cauchy-Schwarz for sums of products of matrices

Finite norm of sequence implies convergence of sequence?

What matrices preserve the $L_1$ norm for positive, unit norm vectors?

Is there a lower-bound version of the triangle inequality for more than two terms?

Show that the sup-norm is not derived from an inner product

C$^*$-algebras: When is there equality in the triangle inequality?

Proving that $\|A\|_{\infty}$ the largest row sum of absolute value of matrix $A$

inequality near $0$ with arbitrary norm

How does one prove that the spectral norm is less than or equal to the Frobenius norm?

How convergence relates to equivalence of norms

Norm of a Matrix-vector product

Proof of uniqueness of the bounded linear transformation extended in the Bounded Linear Transformation theorem

Any finite metric space can be isometrically embedded in $(\mathbb R^n,||\cdot||_\infty)$ for some $n$?

Notation: $L_p$ vs $\ell_p$

Basic question about $\sup_{x\neq 0}{} \frac{\|Ax\|}{\|x\|} = \sup_{\|x\| = 1}{\|Ax\|} $, $x \in\mathbb{R}^n$

Poincaré inequality using $H^1$ seminorm

New posts in normed-spaces

Inequality between induced matrix norms implies equality

On the convexity of element-wise norm 1 of the inverse

Operator norm is equal to max eigenvalue

Can the sum of two measurable functions be non-measurable if they are valued in a general normed space instead of $ \mathbb{R} $?

Cauchy-Schwarz for sums of products of matrices

Finite norm of sequence implies convergence of sequence?

What matrices preserve the $L_1$ norm for positive, unit norm vectors?

Is there a lower-bound version of the triangle inequality for more than two terms?

Show that the sup-norm is not derived from an inner product

C$^*$-algebras: When is there equality in the triangle inequality?

Proving that $\|A\|_{\infty}$ the largest row sum of absolute value of matrix $A$

inequality near $0$ with arbitrary norm

How does one prove that the spectral norm is less than or equal to the Frobenius norm?

How convergence relates to equivalence of norms

Norm of a Matrix-vector product

Proof of uniqueness of the bounded linear transformation extended in the Bounded Linear Transformation theorem

Any finite metric space can be isometrically embedded in $(\mathbb R^n,||\cdot||_\infty)$ for some $n$?

Notation: $L_p$ vs $\ell_p$

Basic question about $\sup_{x\neq 0}{} \frac{\|Ax\|}{\|x\|} = \sup_{\|x\| = 1}{\|Ax\|} $, $x \in\mathbb{R}^n$

Poincaré inequality using $H^1$ seminorm