User user308485 - Mathematics Stack Exchange

8 votes

2 answers

239 views

Land-based path from top to bottom if and only if no water based path from left to right

asked Jul 9, 2023 at 7:29

7 votes

3 answers

172 views

$f'(x) = g(f(x)) $ where $g: \mathbb{R} \rightarrow \mathbb{R}$ is smooth. Show $f$ is smooth. [duplicate]

asked Feb 9, 2016 at 7:21

7 votes

1 answer

2k views

Arzela-Ascoli Theorem on metric spaces

asked Mar 28, 2016 at 17:27

6 votes

2 answers

210 views

Let $G$ be a finite group. If $a = bab$, is it true that $b^{2} = e$

asked Nov 1, 2018 at 3:51

6 votes

3 answers

199 views

Solving the equation $\frac{\ln (x)}{\ln (1-x)} = \frac{1}{x} - 1$

asked Dec 7, 2018 at 8:09

4 votes

2 answers

187 views

Shifting quadratic residues modulo n

asked Apr 25, 2019 at 15:20

4 votes

1 answer

82 views

Is there an operation in some domain that satisfies $xxx = 0$

asked Jun 8, 2016 at 23:26

4 votes

1 answer

423 views

Is this strict inequality of integrals true?

asked Mar 24, 2016 at 6:33

3 votes

3 answers

699 views

Is 'smallest set having P' equivalent to 'intersection of all sets having P'?

asked Feb 24, 2017 at 12:30

3 votes

0 answers

450 views

Equicontinuous, bounded, and closed implies pointwise compact

asked Apr 1, 2016 at 3:37

3 votes

1 answer

99 views

$\|L(v)\| \leq \|L\|\cdot\|v\|$ on Banach spaces

asked Apr 9, 2016 at 7:07

3 votes

1 answer

109 views

Proof that injections from $[1],[2],[3].,,,.$ into $S$ implies $S$ is infinite

asked Jun 3, 2019 at 21:41

2 votes

1 answer

220 views

Upper bound on edge set size of graph that has lower bound on cycle length

asked Sep 19, 2020 at 6:07

2 votes

2 answers

99 views

Does $\frac{1}{2}\log{x} + 1\log{x/4} + 2\log{x/16} + 4\log{x/64} + 8\log{x/256} + ...+ $ converge?

asked Oct 25, 2023 at 21:05

2 votes

1 answer

60 views

Dedekind-infinite vs weakly Dedekind-infinite in ZF

asked Apr 15 at 6:28

2 votes

0 answers

100 views

Half angle proof in Blinn-Phong reflection model

asked Apr 20, 2017 at 20:57

2 votes

1 answer

512 views

Normal matrix over real inner product space with real eigenvalues is Hermitian

asked Mar 10, 2017 at 23:07

2 votes

2 answers

106 views

If $ (a \times b) \cdot c = 0$, then prove algebraically that $c \in span(a,b) $

asked Apr 1, 2017 at 8:13

2 votes

1 answer

185 views

Maximize the sum of elements in a matrix

asked Jan 2, 2017 at 16:01

2 votes

2 answers

946 views

Polar decomposition, positive-definiteness

asked Jul 13, 2016 at 15:33

2 votes

0 answers

235 views

Pseudo-inverse of matrix representation is matrix representation of pseudoinverse

asked Jul 18, 2016 at 21:58

2 votes

1 answer

218 views

Interior points: Precise definition

asked Jan 27, 2016 at 15:54

2 votes

3 answers

404 views

Limit Points of closure of $A$ is subset of limit points of $A$

asked Jan 28, 2016 at 23:57

2 votes

2 answers

515 views

Need every bounded sequence contain a cluster point?

asked Feb 2, 2016 at 0:09

2 votes

3 answers

163 views

Mathematical induction on a finite subset of $\mathbb{N}$

asked Feb 22, 2016 at 8:00

2 votes

2 answers

528 views

Additivity of definite integrals

asked Mar 22, 2016 at 0:58

1 vote

1 answer

233 views

What is a cluster point of this sequence?

asked Feb 6, 2016 at 6:29

1 vote

0 answers

37 views

If $A$ and $C$ are independent events, then $P((A \ and \ C)|B) = P(A|B)*P(C|B) $

asked Feb 18, 2016 at 21:20

1 vote

1 answer

169 views

Hidden Markov Models in part of speech tagging

asked Feb 20, 2016 at 16:56

1 vote

1 answer

637 views

Composition is infinitely differentiable

asked Feb 11, 2016 at 5:29

Stack Exchange Network

72 Questions

Land-based path from top to bottom if and only if no water based path from left to right

$f'(x) = g(f(x)) $ where $g: \mathbb{R} \rightarrow \mathbb{R}$ is smooth. Show $f$ is smooth. [duplicate]

Arzela-Ascoli Theorem on metric spaces

Let $G$ be a finite group. If $a = bab$, is it true that $b^{2} = e$

Solving the equation $\frac{\ln (x)}{\ln (1-x)} = \frac{1}{x} - 1$

Shifting quadratic residues modulo n

Is there an operation in some domain that satisfies $xxx = 0$

Is this strict inequality of integrals true?

Is 'smallest set having P' equivalent to 'intersection of all sets having P'?

Equicontinuous, bounded, and closed implies pointwise compact

$\|L(v)\| \leq \|L\|\cdot\|v\|$ on Banach spaces

Proof that injections from $[1],[2],[3].,,,.$ into $S$ implies $S$ is infinite

Upper bound on edge set size of graph that has lower bound on cycle length

Does $\frac{1}{2}\log{x} + 1\log{x/4} + 2\log{x/16} + 4\log{x/64} + 8\log{x/256} + ...+ $ converge?

Dedekind-infinite vs weakly Dedekind-infinite in ZF

Half angle proof in Blinn-Phong reflection model

Normal matrix over real inner product space with real eigenvalues is Hermitian

If $ (a \times b) \cdot c = 0$, then prove algebraically that $c \in span(a,b) $

Maximize the sum of elements in a matrix

Polar decomposition, positive-definiteness

Pseudo-inverse of matrix representation is matrix representation of pseudoinverse

Interior points: Precise definition

Limit Points of closure of $A$ is subset of limit points of $A$

Need every bounded sequence contain a cluster point?

Mathematical induction on a finite subset of $\mathbb{N}$

Additivity of definite integrals

What is a cluster point of this sequence?

If $A$ and $C$ are independent events, then $P((A \ and \ C)|B) = P(A|B)*P(C|B) $

Hidden Markov Models in part of speech tagging

Composition is infinitely differentiable