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Mathematics

Cleanup

 Cleanup
First rollback.
Awarded 4476 times.
The probability that the first ball drawn was white, if it is known that after two draws urn II contains exactly two white balls.
Awarded Mar 6, 2024 at 11:55
Definition of stopping time
Awarded Mar 5, 2024 at 22:50
(post deleted or otherwise unavailable)
Awarded Mar 5, 2024 at 15:32
About the continuity of the partial derivative
Awarded Mar 5, 2024 at 10:56
Finest locally convex topology - Conway, ex 20, sec 1, chapter 4
Awarded Feb 25, 2024 at 15:25
The spectrum of an invertible element $x$ is $\sigma(x^{-1})=\{\lambda^{-1}: \lambda\in \sigma(x)\}$
Awarded Feb 21, 2024 at 16:52
There exist holomorphic maps from a torus $T$ to the sphere $S$ of all degree $\geq 2$
Awarded Feb 21, 2024 at 14:35
Example where union of increasing sigma algebras is not a sigma algebra
Awarded Feb 14, 2024 at 11:06
A problem involving two orthocenters of two triangles inscribed the same circle
Awarded Feb 13, 2024 at 4:57
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Awarded Feb 12, 2024 at 10:51
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Awarded Feb 7, 2024 at 23:42
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Awarded Feb 5, 2024 at 7:48
prove that $char(R/I_n)$ divides $n$ for a ring $R$ and $I_n$ as an ideal
Awarded Feb 4, 2024 at 14:48
Prove if a discrete subset $E$ of $\mathbb{R}^n$ is compact, then it is finite.
Awarded Feb 2, 2024 at 14:17
(post deleted or otherwise unavailable)
Awarded Jan 30, 2024 at 21:34
Expressing angle between two vectors in 3D in terms of spherical polar coordinates
Awarded Jan 29, 2024 at 10:36
$N$ is not a perfect square
Awarded Jan 28, 2024 at 19:51
(post deleted or otherwise unavailable)
Awarded Jan 17, 2024 at 8:50
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Awarded Jan 16, 2024 at 7:08
simplifying $e^\frac{-t}{4} (\frac{-1}{4})+(\frac{-1}{4}t+1) e^\frac{-t}{4}(\frac{-1}{4})$
Awarded Jan 12, 2024 at 14:05
(post deleted or otherwise unavailable)
Awarded Jan 11, 2024 at 21:57
Square root of a polynomial - Question in the exercise B4 of the 1995 Putnam competition
Awarded Jan 10, 2024 at 15:51
For $f\in L^1[0,1)$, prove, for all $n$, $x^n f\in L^1[0,1)$ and $\lim\int x^n f dx\rightarrow 0$
Awarded Jan 4, 2024 at 0:51
Exploring the convergence properties of a cost function involving orthogonal projection of one-hot vectors
Awarded Jan 3, 2024 at 22:25
(post deleted or otherwise unavailable)
Awarded Jan 3, 2024 at 12:51
Set of zero divisors is union of maximal elements in set of prime ideals containing only zero divisors (A-M ch. 1 ex. 14)
Awarded Jan 1, 2024 at 11:25
Quantizing numbers with ratios
Awarded Jan 1, 2024 at 8:52
Intuition on equivalence classes from group action on $a$ and index of the stabilizer of $a$ [duplicate]
Awarded Jan 1, 2024 at 6:41
(post deleted or otherwise unavailable)
Awarded Dec 31, 2023 at 13:08
Finding the convergent interval of $z^{{2z}^{{3z}\ldots^{{nz}\ldots}}}$
Awarded Dec 31, 2023 at 12:55
Comparison Principle for 2 heat equations
Awarded Dec 29, 2023 at 11:33
How can we find the area of the given highlighted figure?
Awarded Dec 25, 2023 at 17:02
In how many ways can can 12 different books be distributed among 3 students if each student receives at least 2 books? [closed]
Awarded Dec 24, 2023 at 17:56
How to derive velocity in polar coordinates
Awarded Dec 23, 2023 at 23:47
(post deleted or otherwise unavailable)
Awarded Dec 21, 2023 at 14:25
(post deleted or otherwise unavailable)
Awarded Dec 21, 2023 at 3:35
$\Sigma \mathbb{R}P^n$ and $S^2 \vee S^3 \vee ... \vee S^{n+1}$ are not homotopy equivalent
Awarded Dec 19, 2023 at 19:03
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Awarded Dec 18, 2023 at 16:35
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Awarded Dec 17, 2023 at 7:42
The four forth roots of $7 + 24i$ in Cartesian Form
Awarded Dec 15, 2023 at 8:56
chi-distribution table question
Awarded Dec 14, 2023 at 13:55
An idea for this difficult integral: $\int_{-\tfrac{1}{2}}^{\tfrac{1}{2}}\dfrac{\arccos x}{\sqrt{1-x^2}(1+e^{-x})}dx$.
Awarded Dec 12, 2023 at 15:07
(post deleted or otherwise unavailable)
Awarded Dec 10, 2023 at 18:48
If each term in a sum of positive integers divides that sum, then there must be one term that divides another.
Awarded Dec 6, 2023 at 20:00
How many subsets of $\{1, 2, \dots , 10\}$ don't have two numbers difference between which is $2, 3$ or $5$?
Awarded Dec 6, 2023 at 18:06
(post deleted or otherwise unavailable)
Awarded Dec 5, 2023 at 19:41
Let $X_{n}$ and $Y_{n}$ are two bounded sequence. I need to prove $\sup_{n\in\mathbb N}|X_{n}-Y_{n}|=0$ iff $X_{n}=Y_{n}$ for all $n$
Awarded Dec 5, 2023 at 7:20
(post deleted or otherwise unavailable)
Awarded Dec 5, 2023 at 1:51
Approaching a Divisibility Question
Awarded Dec 3, 2023 at 21:08
Maximal Essential Extension of Abelian Groups
Awarded Dec 3, 2023 at 19:50
condition probability of a condition probability
Awarded Dec 1, 2023 at 22:15
$\int \sqrt[3]{1+ \sqrt[4]x}dx $
Awarded Nov 29, 2023 at 18:17
If $A\ge0$ and $AB$ is self-dual, then $|\langle ABx,x\rangle| \le \Vert B\Vert_2 \langle Ax,x\rangle$
Awarded Nov 29, 2023 at 13:10
(post deleted or otherwise unavailable)
Awarded Nov 27, 2023 at 7:47
Are $nimonics$ (nimber mnemonics) a thing?
Awarded Nov 23, 2023 at 19:58
Let a finite group $G$ have $n (>0)$ elements of order $p$ (a prime). If the Sylow $p$-subgroup of $G$ is normal, then does $p$ divide $n+1$?
Awarded Nov 23, 2023 at 9:37
Is this graph a planar graph or not?
Awarded Nov 21, 2023 at 19:47
Does there exist a $4$-dimensional contractible open manifold that is not homeomorphic to $\Bbb{R}^4$?
Awarded Nov 21, 2023 at 11:40
How to solve $\displaystyle\lim_{n\to\infty}\int_0^3\underbrace{\sin(\frac{\pi}{3}\sin(\frac{\pi}{3}...\sin(\frac{\pi}{3} x)...))}_\text{n sines}dx$?
Awarded Nov 18, 2023 at 3:09
(post deleted or otherwise unavailable)
Awarded Nov 17, 2023 at 4:55
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