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user308485
  • Member for 8 years, 4 months
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8 votes
2 answers
238 views

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

7 votes
3 answers
169 views

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

7 votes
1 answer
2k views

Arzela-Ascoli Theorem on metric spaces

6 votes
2 answers
209 views

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

6 votes
3 answers
199 views

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

4 votes
2 answers
178 views

Shifting quadratic residues modulo n

4 votes
1 answer
81 views

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

4 votes
1 answer
423 views

Is this strict inequality of integrals true?

3 votes
3 answers
686 views

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

3 votes
0 answers
448 views

Equicontinuous, bounded, and closed implies pointwise compact

3 votes
1 answer
99 views

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

3 votes
1 answer
109 views

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

2 votes
1 answer
218 views

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

2 votes
2 answers
96 views

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

2 votes
1 answer
54 views

Dedekind-infinite vs weakly Dedekind-infinite in ZF

2 votes
0 answers
100 views

Half angle proof in Blinn-Phong reflection model

2 votes
1 answer
512 views

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

2 votes
2 answers
106 views

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

2 votes
1 answer
183 views

Maximize the sum of elements in a matrix

2 votes
2 answers
933 views

Polar decomposition, positive-definiteness

2 votes
0 answers
233 views

Pseudo-inverse of matrix representation is matrix representation of pseudoinverse

2 votes
1 answer
215 views

Interior points: Precise definition

2 votes
3 answers
404 views

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

2 votes
2 answers
508 views

Need every bounded sequence contain a cluster point?

2 votes
3 answers
161 views

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

2 votes
2 answers
526 views

Additivity of definite integrals

1 vote
1 answer
232 views

What is a cluster point of this sequence?

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) $

1 vote
1 answer
168 views

Hidden Markov Models in part of speech tagging

1 vote
1 answer
632 views

Composition is infinitely differentiable