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Does ||f(x)||:= max|f(x)| spans a Banach space?

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#functional-analysis #analysis #banach-spaces #normed-spaces
26
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bound on hermitian matrix and triple products

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#linear-algebra #matrices #normed-spaces
71
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Numerical Linear Algebra Norms of Matrices

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#matrices #normed-spaces #numerical-linear-algebra
1.5k
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Find the derivative of norm squared

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#derivatives #normed-spaces
321
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Equality of definitions of Lower Semicontinuity

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#general-topology #functional-analysis #metric-spaces #normed-spaces #semicontinuous-functions
165
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Norm of compactly supported function in dual of $H^1_0(D)$

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#functional-analysis #hilbert-spaces #sobolev-spaces #normed-spaces #dual-spaces
84
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Are the minimum of two symmetric matrices closer to each other than the two matrices themselves?

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#linear-algebra #matrices #eigenvalues-eigenvectors #normed-spaces
194
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Subgradient of Ky Fan norm

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#convex-analysis #convex-optimization #normed-spaces #subgradient #matrix-norms
3.6k
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Differentiate the norm of a function

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#derivatives #normed-spaces #chain-rule
1.5k
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The Frobenius norm is not an operator norm

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#matrices #normed-spaces #matrix-norms
64
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Minimizing $L^1$ Norm Subject to Linear Dynamics

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#optimization #normed-spaces #maxima-minima #optimal-control #linear-control
47
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Does $ \langle x, x \rangle = \langle y,y \rangle $ imply $ \| x \| = \| y \|. $

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#vectors #normed-spaces #inner-products
58
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Let $\left<M,||.|| \right>$ be a normed vector space then $G = \{x \in M \mid \|x\| \leq 1\}$ is closed

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#real-analysis #proof-verification #normed-spaces
171
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A question about the proof of mean value theorem for vector valued functions

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#real-analysis #proof-explanation #normed-spaces
165
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When does a multilinear form induce a norm?

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#normed-spaces #multilinear-algebra #cauchy-schwarz-inequality

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