Question

Bounding $\|A^n-B^n\|_F$ by $\|A-B\|_F$

score 106 · Answer 1 · 2020-11-17 08:59:19

106

Views

Bounding $\|A^n-B^n\|_F$ by $\|A-B\|_F$

Published on 17 Nov 2020 - 8:59

score 50 · Answer 2 · 2026-04-03 05:46:38

50

Views

Bounding an Error on the inverse.

Published on 03 Apr 2026 - 5:46

score 76 · Answer 3 · 2020-11-18 19:58:35

76

Views

How to turn bound on $ne^{-n}$ into bound for n?

Published on 18 Nov 2020 - 19:58

score 26 · Answer 4 · 2020-11-20 04:15:21

26

Views

Does $|X_t|\leq K$ imply $\sup_{0\leq s\leq t}|X_t|\leq K$?

Published on 20 Nov 2020 - 4:15

score 58 · Answer 5 · 2020-11-20 22:45:47

58

Views

Bounding the smallest eigenvalue of a matrix from below

Published on 20 Nov 2020 - 22:45

score 124 · Answer 6 · 2020-11-20 23:50:16

124

Views

How can I prove $\sum_{i=1}^n \sum_{j=1}^n \frac{a_ia_j}{i+j-1}$ is never negative for any set of n real numbers $a_i$

Published on 20 Nov 2020 - 23:50

score 542 · Answer 7 · 2020-11-21 03:31:00

542

Views

supremum and infimum for A who is be a nonempty and bounded subset

Published on 21 Nov 2020 - 3:31

score 808 · Answer 8 · 2020-11-22 09:25:37

808

Views

Lower bound for sum of reciprocals of positive real numbers

Published on 22 Nov 2020 - 9:25

score 72 · Answer 9 · 2026-04-02 16:35:39

72

Views

Is the trace of a product of positive definite matrices bigger than the sum of the product of their corresponding diagonal elements?

Published on 02 Apr 2026 - 16:35

score 48 · Answer 10 · 2020-11-22 17:09:16

48

Views

Derivative of $\frac{x/2}{\sin(x/2)}$ is bounded in $[0,\pi]$

Published on 22 Nov 2020 - 17:09

score 463 · Answer 11 · 2020-11-23 05:14:06

463

Views

Subsets $Y$ of a partially ordered set $L$ need not have least upper bounds nor greatest lower bounds

Published on 23 Nov 2020 - 5:14

score 220 · Answer 12 · 2026-03-29 18:32:53

220

Views

Partial sum of Stirling numbers of the second kind with falling factorial

Published on 29 Mar 2026 - 18:32

score 392 · Answer 13 · 2020-11-23 09:17:00

392

Views

Boundedness in probability of Stochastic Process

Published on 23 Nov 2020 - 9:17

score 223 · Answer 14 · 2020-11-23 19:08:18

223

Views

Are there single words for being within two bounds exclusive and non-exclusive?

Published on 23 Nov 2020 - 19:08

score 239 · Answer 15 · 2026-03-27 10:12:08

239

Views

If $p^k m^2$ is an odd perfect number, then what is the optimal constant $C$ such that $\frac{\sigma(m^2)}{p^k} < \frac{m^2 - p^k}{C}$?

Published on 27 Mar 2026 - 10:12

List Question

Bounding $\|A^n-B^n\|_F$ by $\|A-B\|_F$

Bounding an Error on the inverse.

How to turn bound on $ne^{-n}$ into bound for n?

Does $|X_t|\leq K$ imply $\sup_{0\leq s\leq t}|X_t|\leq K$?

Bounding the smallest eigenvalue of a matrix from below

How can I prove $\sum_{i=1}^n \sum_{j=1}^n \frac{a_ia_j}{i+j-1}$ is never negative for any set of n real numbers $a_i$

supremum and infimum for A who is be a nonempty and bounded subset

Lower bound for sum of reciprocals of positive real numbers

Is the trace of a product of positive definite matrices bigger than the sum of the product of their corresponding diagonal elements?

Derivative of $\frac{x/2}{\sin(x/2)}$ is bounded in $[0,\pi]$

Subsets $Y$ of a partially ordered set $L$ need not have least upper bounds nor greatest lower bounds

Partial sum of Stirling numbers of the second kind with falling factorial

Boundedness in probability of Stochastic Process

Are there single words for being within two bounds exclusive and non-exclusive?

If $p^k m^2$ is an odd perfect number, then what is the optimal constant $C$ such that $\frac{\sigma(m^2)}{p^k} < \frac{m^2 - p^k}{C}$?

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