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3h ago
“Efficient version” of Cayley's Theorem in Group Theory — Rose 512
6h ago
If $2^x=0$, find $x$. — rst 815
9h ago
Preparation for Putnam? — Aspirant 512
10h ago
Closed form for $\int_0^{\infty}\frac{\arctan x\ln(1+x^2)}{1+x^2}\sqrt{x}\,dx$ — Laila Podlesny 801116
11h ago
Prove that $\exists a,g,h\in G\colon h=aga^{-1}, g\neq h ,gh=hg$ in a finite non-abelian group $G$. — Maisam Hedyelloo 3,530329
11h ago
When is the closure of an open ball equal to the closed ball? — Alex Lapanowski 20219
15h ago
What are some good open problems about countable ordinals? — Zakharia Stanley 4989
16h ago
Complex Analysis Book — Gastón Burrull 1,320526
18h ago
Why is the dimension of $SL(2,\mathbb{H})$ equal to $15$? — O.L. 4,668935
18h ago
What is the mathematical foundation of Control Theory? — PooyaM 75312
23h ago
explaining the derivative of $x^x$ — mt_ 4,0781721
1d ago
The class of all classes not containing themselves — Mozibur Ullah 789110
1d ago
Can we get just $3$ from $\pi$? [closed] — Kaish 1,818119
1d ago
Cup product and hypercohomology — Tom Bachmann 762
1d ago
Is it possible to make integers a field? — Igor 4378
1d ago
Closed form for n-th anti-derivative of $\log x$ — Laila Podlesny 801116
1d ago
$\int_{\mathbb{R}}|f(t)|^2dt=\int_{\mathbb{R}}|f'(t)|^2dt$ implies $f(t)=\mathbb{x}_{i}|f(t)|$ — Guillermo 46714
2d ago
Check my proof that $(ab)^{-1} = b^{-1} a^{-1}$ — Student 966214
2d ago
An infinite product — Ronald Antweiler 562
2d ago
Combinatorial proof of a Stirling number identity. — EuYu 15.1k21340
2d ago
$\sum_i x_i^n = 0$ for all $n$ implies $x_i = 0$ — Andrew Salmon 3,444430
2d ago
Closed form for $\int_0^\infty\left(\int_0^1\frac1{\sqrt{1-y^2}\sqrt{1+x^2\,y^2}}\mathrm dy\right)^3\mathrm dx.$ — Vladimir Reshetnikov 1,776934
2d ago
Fractional Derivative Implications/Meaning? — Mr. Vubio 844
2d ago
How do solve this integral $\int_{-1}^1\frac{1}{\sqrt{1-x^2}}\arctan\frac{11-6\,x}{4\,\sqrt{21}}\mathrm dx$? — Liu Jin Tsai 502310
2d ago
Can you raise $\pi$ to a real power to make it rational? — OmnipresentAbsence 2629
2d ago
Proof of $H^k(X,\mathbf k) = H^k(X,\mathbb Z) \otimes \mathbf k$ — Lucas Kaufmann 58617
may 22 at 13:02
Yitang Zhang: Prime Gaps — Trancot 56217
may 22 at 12:22
How to prove this inequality(7)? — math110 1,990327
may 22 at 9:27
Is there a function with the property$ f(n)=f^{(n)}(a)$ — hmedan.mnsh 41411
may 22 at 4:56
How many points can you find on $y=x^2$, for $x \geq 0$, such that each pair of points has rational distance? — Clark Zinzow 685
may 22 at 1:41
A Question about Doctoral Theses in Mathematics [closed] — user02138 6,00221746
may 22 at 1:31
How to show that a set of discontinuous points of an increasing function is at most countable — AKM 1065
may 21 at 23:16
Why doesn't integrating the area of the square give the volume of the cube? — Sp. 2127
may 21 at 22:16
Math blogs, pros and cons for writers? — Hui Yu 3,834421
may 21 at 20:26
Prove every integer exists in this sequence? — user78416 1313
may 21 at 19:06
From universal measurability to measurability — Michael Greinecker♦ 12.5k21453
may 21 at 18:11
About the property of $m$: if $n < m$ is co-prime to $m$, then $n$ is prime [duplicate] — YZhang 12612
may 21 at 16:26
Does $\,x>0\,$ hint that $\,x\in\mathbb R\,$? — ᴊ ᴀ s ᴏ ɴ 3,0021424
may 21 at 13:55
Find the value of $\int_{0}^{\infty}\frac{x^3}{e^x-1}\ln(e^x - 1)\,dx$ — Mr. G 1618
may 21 at 10:35
Uniform convergence of $\sum_{n=1}^{\infty} \frac{\sin(n x) \sin(n^2 x)}{n+x^2}$ — ORBOT Inc. 1215
may 21 at 10:25
Limit of $y=\sqrt{5+\sqrt{5-\sqrt{5+\sqrt{5-\sqrt{5+\ldots}}}}}$ — Justin 32112
may 21 at 10:10
What is a proof? — dkbose 1259
may 21 at 8:45
Can an algebraic structure have indistinguishable elements? — user18921 3,4551227
may 21 at 6:55
Why is $2\pi i \neq 0?$ [duplicate] — mathguy 1,388216
may 21 at 6:35
Schur's Lemma in Group Theory — RDK 1904
may 21 at 5:55
How to find $1+\dfrac{1}{a_{1}}+\dfrac{1}{a_{2}}+\cdots+\dfrac{1}{a_{n}}$ — math110 1,990327
may 21 at 5:00
Is a torus a subset of $\mathbb{R}^3$ or $\mathbb{R}^4$? — user78720 612
may 21 at 4:05
Closed form for $n$th derivative of exponential of $f$ — JFNJr 2436
may 21 at 3:40
Real-world uses of Algebraic Structures — EAGER_STUDENT 182110
may 21 at 2:05
For x < 5 what is the greatest value of x — Tom 2185
may 21 at 0:55
What is the smallest integer $n$>1 such that $n^{5000}+n^{2013}+1$ is prime? — Peter 612
may 21 at 0:50
Generalized nontransitive dice — Qiaochu Yuan 118k7245462
may 21 at 0:30
How to show in a clean way that $z^4 + (x^2 + y^2 - 1)(2x^2 + 3y^2-1) = 0$ is a torus? — Damien L 3,50126
may 20 at 23:25
Find an expression for the $n$-th derivative of $f(x)=e^{x^2}$ — Mykolas 39918
may 20 at 20:58
Which methods to use to integrate $\int{\frac{x^4 + 1}{x^2 +1}}\, dx$ — jen 612
may 20 at 18:48
Let $f :\mathbb{R}→ \mathbb{R}$ be a function such that $f^2$ and $f^3$ are differentiable. Is $f$ differentiable? — ROBINSON 65214
may 20 at 18:18
What are good books/other readings for elementary set theory? — InterestedGuest 2,9462933
may 20 at 17:13
Integrating $\frac{x^k }{1+\cosh(x)}$ — TheBlaarg 1435
may 20 at 11:53
Topological vs. Algebraic $K$-Theory — user02138 6,00221746
may 20 at 5:48
$\sum\limits_{\text{prime }p} 2^{-p}$ is an irrational number — lilaliliana 702
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