Top Questions

0 votes
1 answer
34 views

How to factor $(x-y)^5 + (y-z)^5 + (z-x)^5$

0 votes
1 answer
23 views

Are there examples where torsion subgroup of the first homology group is not $(\mathbb{Z}_2)^n$?

1 vote
1 answer
14 views

$\lim\limits_{x\to 0} \dfrac{e^x-e^{x\cos x}}{x+\sin x}$

-3 votes
0 answers
21 views

Continuing the hexadecimal sequence 9bf66a6a87, 9bfd91c857, 9c0501e2ae, 9c0991af27, 9c0d27e6ec, ... [closed]

0 votes
0 answers
20 views

Proof that $f(x,t)$ can be written as $g(x-at)$ given certain condition.

0 votes
0 answers
13 views

$G = \langle C_G(a) \mid a \in Q \setminus \{1\} \rangle.$ Proof by induction on $|G|$

0 votes
0 answers
13 views

Is there a way to solve this problem without modular arithmetic?

0 votes
0 answers
13 views

Show that for any $A\in\mathcal{B}([0,1])$ with $1>\mu(A)=a>0$ and any $b\in [0,a]$ so that $\mu(B)=b$.

0 votes
3 answers
59 views

How to solve $\int x^2\sqrt{x^2 - 1}dx$ [duplicate]

1 vote
1 answer
44 views

Explicitly finding a finite abelian group from a presentation, $\langle a, b~|~a^n = b^n=1, ab=ba, ab^{-1}ab^{-1}=1\rangle$

1 vote
1 answer
27 views

De Moivre's formula application

0 votes
1 answer
19 views

uniform convergenof this function to 0

1 vote
1 answer
21 views

Let $ABCDA'B'C'D'$ be a parallelepiped with $AB=10\sqrt{3}, BC=10,CC'=20$. Find the position of the point M, so that the triangle $AMC'$ is isosceles.

0 votes
0 answers
21 views

Prove that image$(T)$ and image$(S)$ are isomorphic

0 votes
0 answers
21 views

Norm of triangular matrix with constant rows $\approx \sqrt{d \log 2}$?

0 votes
1 answer
20 views

Proving an infinite series is $o(1)$ using asymptotics

0 votes
0 answers
20 views

How do I continue solving this ODE?

-2 votes
1 answer
19 views

The volume of real matrices with unit determinant

0 votes
0 answers
18 views

Finding particular solution for DE

0 votes
1 answer
16 views

$\sigma$-algebra on $\mathbb{R}$ generated by the collection of all one-point sets.

-1 votes
1 answer
14 views

distribution of response variables in Maximum Likelihood Estimation [closed]

0 votes
0 answers
14 views

Integral formula for Hopf map in local coordinates appears to vanish

1 vote
0 answers
12 views

Absolute sum of Fourier Coefficients on a finite field.

0 votes
1 answer
27 views

Why is the set $A$ not closed under countable unions?

1 vote
2 answers
44 views

Calculate the whole part of $A=\frac{1012^2}{\sqrt{1*2}+\sqrt{3*4}+\cdots+\sqrt{2023*2024}}$

3 votes
1 answer
62 views

Can we conclude that $f=g$ a.e. if $\int _Efd\mu =\int _Egd\mu $ for all measurable sets $E$?

-1 votes
0 answers
47 views

classical theory of probability

0 votes
0 answers
35 views

Every solvable group of order less than 200 must be of order 60,120,168 or 180

0 votes
0 answers
30 views

How to solve this second order non homogeneous differential equation

-1 votes
1 answer
17 views

Does multiplying a matrix A by a matrix S and it's adjoint keep it real? [closed]

0 votes
1 answer
19 views

A basic question about asymptotics

0 votes
0 answers
17 views

Basic questions on Fourier series form, convergence and uniqueness

-1 votes
0 answers
14 views

Parameterization/ infinite solutions of $((rw)^2 + (vy)^2)((sz)^2 + (ux)^2) = 2(rsuv)^2 + 2(wxyz)^2$

1 vote
1 answer
13 views

Complement of all subdiagonals is open in the infinite product topology

5 votes
3 answers
73 views

Expressing the area of an isosceles triangle as a function of one of its angles.

1 vote
1 answer
67 views

Triple integral of $\frac{1}{(1+x^2+y^2+z^2)^2}$ over the region $V:0\leq x,y,z\leq1$.

1 vote
1 answer
40 views

Alternative universal coefficient theorem for cohomology?

4 votes
1 answer
30 views

Shifted Borel set

2 votes
1 answer
70 views

$(1 + a)^\epsilon \le 1 + a \epsilon, 0 < \epsilon < 1, a>0$

0 votes
1 answer
26 views

Help with solving an ODE involving nested square roots

0 votes
0 answers
32 views

How to prove for $AX=B$ , number of linearly independent columns in B can't exceed A? [duplicate]

5 votes
1 answer
58 views

No 3 vectors independent over $\mathbb{Z}$ in $\mathbb{Z}^2$, without AoC

-2 votes
0 answers
31 views

Proving Isometry [closed]

0 votes
0 answers
30 views

Notation for map evaluated at all elements of a set?

-2 votes
1 answer
23 views

Dimensional consistency involving square root [closed]

2 votes
0 answers
22 views

What is Sørensen–Dice coefficient formula for 3 sets?

-1 votes
0 answers
22 views

Specific example for fundamental theorem of galois theory

1 vote
1 answer
45 views

How to prove that the theory of Z without 1 has no prime model?


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