Question

Let $W$ a neighborhood of $p\in M$. Why is there $V\subset M$ s.t. $V\subset \overline{V}\subset W$?

score 20 · Answer 1 · 2015-12-09 12:29:59

20

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Let $W$ a neighborhood of $p\in M$. Why is there $V\subset M$ s.t. $V\subset \overline{V}\subset W$?

Published on 09 Dec 2015 - 12:29

score 20 · Answer 2 · 2015-12-08 01:54:14

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How to create a set of equations using coordinates

Published on 08 Dec 2015 - 1:54

score 20 · Answer 3 · 2026-04-05 23:47:04

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Find $X_0$ in $X_n = \frac{p^n}{2^{n-1}}\cdot X_o$, with $\sum_{n=0} ^\infty X_n =1$

Published on 05 Apr 2026 - 23:47

score 20 · Answer 4 · 2026-04-05 23:47:04

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$A_k=\{(w_1,w_2,...,w_n)\in \Omega^n: w_i=1 \text{ for exactly k indices}\}$ $\implies$ $|A_k|={n \choose k}$

Published on 05 Apr 2026 - 23:47

score 20 · Answer 5 · 2026-03-31 12:11:08

20

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Complex filter factorizations with invariant points

Published on 31 Mar 2026 - 12:11

score 20 · Answer 6 · 2026-04-09 12:20:14

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Equation with sums of functions, justification for considering only individual functions

Published on 09 Apr 2026 - 12:20

score 20 · Answer 7 · 2015-12-02 21:21:24

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Derivative of a definite integral $\frac{\partial}{\partial x(i)}\int_{i=0}^{A}[x(i)]^{\alpha}di$

Published on 02 Dec 2015 - 21:21

score 20 · Answer 8 · 2026-04-05 23:43:48

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Show that there exist $A>0$ (not depend on $m$) such that $|u_{m}|>A$

Published on 05 Apr 2026 - 23:43

score 20 · Answer 9 · 2015-11-28 16:26:58

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if $\sum_{j\in\mathbb{Z}}|u_j|^p<\infty$, is then $u_j\to 0$?

Published on 28 Nov 2015 - 16:26

score 20 · Answer 10 · 2015-11-28 15:50:30

20

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Show $\varphi(x_1,...,x_{n+1})=\frac{1}{1-x_{n+1}}(x_1,...,x_n)$ is surjective.

Published on 28 Nov 2015 - 15:50

score 20 · Answer 11 · 2026-04-05 23:48:18

20

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Finding an isomorphism from $\Bbb Z_{540}$ to a direct product of cyclic groups

Published on 05 Apr 2026 - 23:48

score 20 · Answer 12 · 2015-11-25 19:52:58

20

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Two equations involving $\sin$ and $\cos$.

Published on 25 Nov 2015 - 19:52

score 20 · Answer 13 · 2015-11-25 05:49:27

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Question on existence of lower point

Published on 25 Nov 2015 - 5:49

score 20 · Answer 14 · 2015-11-24 19:54:31

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Let $F$ be a field, and $J =\{f\in F[X,Y] \vert f(0,Y) = 0\}$, $J$ is not maximal

Published on 24 Nov 2015 - 19:54

score 20 · Answer 15 · 2015-11-24 10:42:07

{$g_n$}$_{n \in\mathbb{N}}$ converges to $g$ in $L^q(\mathbb{R^n})$ then {$A_f(g_n)$}$_{n \in \mathbb{N}}$ in $\mathbb{C}$ converges to $A_f(g)$.

List Question

Let $W$ a neighborhood of $p\in M$. Why is there $V\subset M$ s.t. $V\subset \overline{V}\subset W$?

How to create a set of equations using coordinates

Find $X_0$ in $X_n = \frac{p^n}{2^{n-1}}\cdot X_o$, with $\sum_{n=0} ^\infty X_n =1$

$A_k=\{(w_1,w_2,...,w_n)\in \Omega^n: w_i=1 \text{ for exactly k indices}\}$ $\implies$ $|A_k|={n \choose k}$

Complex filter factorizations with invariant points

Equation with sums of functions, justification for considering only individual functions

Derivative of a definite integral $\frac{\partial}{\partial x(i)}\int_{i=0}^{A}[x(i)]^{\alpha}di$

Show that there exist $A>0$ (not depend on $m$) such that $|u_{m}|>A$

if $\sum_{j\in\mathbb{Z}}|u_j|^p<\infty$, is then $u_j\to 0$?

Show $\varphi(x_1,...,x_{n+1})=\frac{1}{1-x_{n+1}}(x_1,...,x_n)$ is surjective.

Finding an isomorphism from $\Bbb Z_{540}$ to a direct product of cyclic groups

Two equations involving $\sin$ and $\cos$.

Question on existence of lower point

Let $F$ be a field, and $J =\{f\in F[X,Y] \vert f(0,Y) = 0\}$, $J$ is not maximal

{$g_n$}$_{n \in\mathbb{N}}$ converges to $g$ in $L^q(\mathbb{R^n})$ then {$A_f(g_n)$}$_{n \in \mathbb{N}}$ in $\mathbb{C}$ converges to $A_f(g)$.

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