Mathematics
Profile Activity
Meta user
Network profile
832
reputation
6
16

Marcos TV

I love topology and data science.

10
answers
34
questions
~7k
people reached
  • Mexico City, CDMX, México
  • Member for 5 years, 2 months
  • 96 profile views
  • Last seen Nov 6 '20 at 20:04

Communities (6)

Top network posts

Top tags (61)

Score 10
Posts 7
Posts % 16
Score 6
Posts 2
Score 4
Posts 2
Score 3
Posts 8
Score 3
Posts 6
Score 2
Posts 9
View all tags →

Top posts (44)

All Questions Answers
Votes Newest
6 How can we prove that $a!\times b! \mid (a+b)!$ Apr 27 '17
6 Derivative of Legendre polynomial satisfies $\int P'_m(x) P'_n (x) (1-x^2) dx = 0$ May 18 '17
4 Use Cauchy's Theorem to find $\lim_{(x,y)\to(0,0)} \frac{\cos(x) - \cos(y)}{x^2 - y^2}$. May 30 '17
4 Prove that the set $B_m$ is measurable Sep 12 '16
4 Derivative of Legendre polynomial satisfies $\int P'_m(x) P'_n (x) (1-x^2) dx = 0$ May 18 '17
3 A dense set in the space of continuous functions Dec 27 '17
2 The intersection of all the R-S integrable functions is the set of continuous functions Nov 30 '17
2 If an abelian group $A$ is injective as $\mathbb{Z}$ module then $A$ is a divisible group Nov 16 '16
2 $H_1$ and $H_2$ normal subgroups of $G$, $f(g)=(gH_1, gH_2)$ and $G.C.D.(|G/H_1|,|G/H_2|)=1$ then $f$ is epimorphism Mar 21 '17
2 If $X,Y$ are independent $\chi ^2$ with $m$ and $n$ degrees of freedom, then $\frac{X}{X+Y} \sim\beta(m/2, n/2)$ May 3 '17
View all questions and answers →

Badges (22)

Gold

—

Silver

6

Rarest

Bronze

16

Rarest

View all badges →