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Mathematics

Organizer

 Organizer
First retag.
Awarded 8439 times.
How can I cut an irregular part of a quarter circle in exactly two halves?
Awarded Jan 31 at 15:27
Equiconsistency of euclidean, hyperbolic, and elliptic geometry
Awarded Jan 30 at 1:37
Power Series and their radii of convergence
Awarded Jan 20 at 16:28
(post deleted or otherwise unavailable)
Awarded Jan 16 at 9:23
How to solve a linear differential equation with 16 variables? (The system matrix containing a symbolic parameter)
Awarded Jan 15 at 15:31
Stability of a particular quasi-polynomial
Awarded Jan 13 at 6:32
(post deleted or otherwise unavailable)
Awarded Jan 12 at 5:24
For which $n\in\Bbb N$ can we divide $\{1,2,3,...,3n\}$ into $n$ subsets each with $3$ elements such that in each subset $\{x,y,z\}$ we have $x+y=3z$?
Awarded Jan 11 at 9:07
Are there infinitely many groups whose smallest graph with that automorphism group has more vertices than the group has elements?
Awarded Jan 8 at 12:47
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Awarded Jan 8 at 9:47
(post deleted or otherwise unavailable)
Awarded Jan 7 at 16:45
Question regarding $\sum_i(x_i^2 + y_i^2)$, where $(x_i , y_i)$ are the vertices of a square inscribed in a circle
Awarded Jan 6 at 22:04
Feedback for proving the kernel of a group homomorphism is a normal subgroup [closed]
Awarded Jan 5 at 17:00
Find the monotone sequences in $\frac{m^2+n^2+2a_n\cdot\, a_m}{ {a_m}^2 + {a_n}^2 + 2mn} \in \mathbb{N}$
Awarded Jan 4 at 21:43
If $(a-b+c)(4a-2b+c)\le0$ then prove that $b^2\ge4ac$ where $a,b,c \in \mathbb{R}$
Awarded Jan 4 at 19:48
(post deleted or otherwise unavailable)
Awarded Jan 4 at 1:57
Convergence of the series $ \sum^{\infty}_{n=1}\left( \frac{1}{n} - \frac{1}{n^2}\right)$ [closed]
Awarded Jan 2 at 19:38
Rigorous Proof that $\lim_{h \to 0^+} \frac{f(x_0 + h) - f(x_0)}{h} \leq 0$ in Fermat's Stationary Point Theorem?
Awarded Dec 28, 2024 at 20:40
(post deleted or otherwise unavailable)
Awarded Dec 28, 2024 at 17:13
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Awarded Dec 26, 2024 at 14:56
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Awarded Dec 21, 2024 at 7:17
(post deleted or otherwise unavailable)
Awarded Dec 20, 2024 at 8:06
If $\lim a_n$ exists, then $\lim \inf a_n= \lim \sup a_n = \lim a_n$.
Awarded Dec 18, 2024 at 9:21
Young's inequality for convolutions in $l^2$
Awarded Dec 18, 2024 at 2:51
(post deleted or otherwise unavailable)
Awarded Dec 17, 2024 at 18:21
The basis for a topology on the set of all functions f:[0,1]→[0,1]
Awarded Dec 16, 2024 at 4:25
Product of exponential maps is local diffeomorphism
Awarded Dec 15, 2024 at 14:57
(post deleted or otherwise unavailable)
Awarded Dec 14, 2024 at 13:57
(post deleted or otherwise unavailable)
Awarded Dec 10, 2024 at 19:35
Find the equation of a plane tangent to two spheres
Awarded Dec 6, 2024 at 5:23
(post deleted or otherwise unavailable)
Awarded Dec 5, 2024 at 11:18
$f(x) = x e^x$. Let $L : (0, \infty) \to (0, \infty)$ be its inverse function. Which of the following statements is correct?
Awarded Dec 2, 2024 at 9:22
Prove line segments are equal in length
Awarded Dec 2, 2024 at 2:50
Regular Perturbation for ODE with both x and y
Awarded Nov 30, 2024 at 7:34
number of cycles in directed graphs with minimum in- or out-degree
Awarded Nov 30, 2024 at 0:04
(post deleted or otherwise unavailable)
Awarded Nov 28, 2024 at 18:17
Confidence interval based anomaly detection
Awarded Nov 27, 2024 at 23:50
When is a subset of a simply connected space $E$, simply connected? [closed]
Awarded Nov 24, 2024 at 19:26
(post deleted or otherwise unavailable)
Awarded Nov 23, 2024 at 14:23
Properties of special curves: cardioid, astroid, tractix, and so on
Awarded Nov 23, 2024 at 5:25
5-color Theorem proof
Awarded Nov 21, 2024 at 16:35
Show $0<x<\sqrt[3]{2} \implies \frac{2}{3}(x+\frac{1}{x^2})>\sqrt[3]{2}$
Awarded Nov 21, 2024 at 7:37
Does the horizon mark a geometrical intersection of some sort between the earth and the sky? [closed]
Awarded Nov 19, 2024 at 5:07
Minimum dimensions of information required to find the positions of straight wires
Awarded Nov 18, 2024 at 12:51
Optimal tickmark placement
Awarded Nov 17, 2024 at 20:01
If $n$ is irrational, then $n^n$ is not necessarily irrational? [duplicate]
Awarded Nov 17, 2024 at 5:12
Prove that if $\operatorname{rank}(A)$ = $\operatorname{rank}(AB)$, $\operatorname{Range}(A)$ = $\operatorname{Range}(AB)$
Awarded Nov 16, 2024 at 22:11
Special case of Ramanujan's theta function.
Awarded Nov 11, 2024 at 9:46
Ordinal addition with limit ordinals, as in Kunen.
Awarded Nov 8, 2024 at 7:16
Infinity category theory [duplicate]
Awarded Nov 6, 2024 at 1:32
(post deleted or otherwise unavailable)
Awarded Nov 3, 2024 at 6:18
(post deleted or otherwise unavailable)
Awarded Nov 2, 2024 at 9:15
Question about nested countable local basis on a first countable space
Awarded Nov 1, 2024 at 15:05
Evaluating $\prod_{k=1}^{n}\frac{3k^2+5k+2}{3k^2+5k-2}$
Awarded Nov 1, 2024 at 14:42
Consider heights $AA_1$ and $BB_1$ in acute triangle ABC, prove that $A_1C•BC = B_1C •AC$
Awarded Oct 30, 2024 at 1:23
Left nullspace equals rowspace of nonsingular matrix
Awarded Oct 29, 2024 at 2:02
Proof Adjoint(AB) = adjoint(B)adjoint(A)
Awarded Oct 28, 2024 at 15:06
Maths Olympiad hints and/or solution about special number abcd
Awarded Oct 25, 2024 at 1:18
Cardinality of $\mathcal P 1$ in intuitionistic logic
Awarded Oct 23, 2024 at 19:49
What properties must $\phi(x)$ in $\{x|\phi(x)\}$ have in order not to bring a paradox?
Awarded Oct 23, 2024 at 8:04
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