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15
Math.TechQA.Club
2026-03-25 11:11:58
66
Views
Does $\sup_{\Vert x \rVert = 1} \langle A x, x \rangle$ equal the largest eigenvalue of $A$?
Published on
25 Mar 2026 - 11:11
#spectral-theory
#spectral-radius
#spectral-norm
61
Views
Does there exist an upper bound on the $\frac{\lVert F \rVert_F}{\lVert F \rVert}$ ratio knowing that F is the sum of two matrices?
Published on
25 Mar 2026 - 12:50
#matrices
#ratio
#matrix-norms
#spectral-norm
167
Views
Frobenius and spectral norms of rank-$1$ matrices
Published on
09 Apr 2026 - 13:38
#matrices
#matrix-norms
#spectral-norm
#rank-1-matrices
41
Views
Can we express the spectral norm of a matrix $F$ in terms of the singular values of the sub-matrix $K$?
Published on
25 Mar 2026 - 12:50
#matrices
#block-matrices
#matrix-norms
#singular-values
#spectral-norm
82
Views
Bounding spectral norm of the matrix $f(\Sigma)$
Published on
25 Mar 2026 - 11:15
#linear-algebra
#matrices
#operator-theory
#unbounded-operators
#spectral-norm
26
Views
$2$-norm of a matrix obtained through discretization of the eigenvalue problem
Published on
10 May 2026 - 16:59
#matrices
#eigenvalues-eigenvectors
#spectral-norm
#circulant-matrices
119
Views
Is there a notion of the spectrum of $L^1$ functions and does it correspond with the support of a random variable?
Published on
25 Mar 2026 - 11:16
#functional-analysis
#analysis
#spectral-theory
#spectral-radius
#spectral-norm
80
Views
Spectral norm of modified matrix
Published on
10 Apr 2026 - 18:29
#linear-algebra
#matrices
#matrix-norms
#spectral-norm
97
Views
Can a convex combination of matrices in the unit spectral norm ball be unitary?
Published on
25 Mar 2026 - 11:16
#linear-algebra
#matrices
#unitary-matrices
#spectral-norm
117
Views
Prove $\| A\|_2=\|A^T\|_2$
Published on
10 May 2026 - 7:47
#linear-algebra
#matrices
#matrix-norms
#transpose
#spectral-norm
119
Views
Subgradient of the spectral norm
Published on
11 May 2026 - 0:27
#matrices
#matrix-norms
#subgradient
#spectral-norm
#non-smooth-analysis
86
Views
Maximal spectral norm of balanced $\pm 1$ matrix
Published on
13 Apr 2026 - 22:46
#matrices
#discrete-optimization
#bipartite-graphs
#matrix-norms
#spectral-norm
105
Views
Spectral norm of product and spectral radius
Published on
17 Apr 2026 - 8:00
#matrices
#inequality
#eigenvalues-eigenvectors
#spectral-radius
#spectral-norm
113
Views
Case of equality in spectral norm matrix triangle inequality
Published on
11 Apr 2026 - 11:04
#matrices
#matrix-decomposition
#triangle-inequality
#spectral-norm
100
Views
How to minimize $\| x {\bf I} - {\bf A} \|_2$?
Published on
09 Apr 2026 - 11:46
#matrices
#optimization
#matrix-norms
#spectral-norm
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