Chain Markov's user avatar
Chain Markov's user avatar
Chain Markov's user avatar
Chain Markov
  • Member for 5 years, 8 months
  • Last seen more than a week ago
72 votes
0 answers
1k views

Can Erdős-Turán $\frac{5}{8}$ theorem be generalised that way?

43 votes
1 answer
609 views

What is $\tau(A_n)$?

38 votes
1 answer
976 views

Does there exist $a_0$, such that $\{a_n\}_{n=0}^{\infty}$ is unbounded?

30 votes
4 answers
725 views

Are there any natural numbers $n$ that satisfy the condition $7921\sigma(n) = 15840n$?

20 votes
1 answer
646 views

The number of non-singular $n\times n$ matrices over $\mathbb{F}_2$ with exactly $k$ non-zero entries

17 votes
0 answers
283 views

Probability of a group being finite

16 votes
2 answers
2k views

Are there infinitely many Fermat prime pairs?

15 votes
1 answer
164 views

A question about converging derivatives

14 votes
1 answer
286 views

Is there some sort of classification of all minimal non-cyclic groups?

13 votes
0 answers
273 views

Are all verbal automorphisms inner power automorphisms?

13 votes
2 answers
245 views

Is $[G_p \cap G_q:G_{pq}]$ always finite?

13 votes
2 answers
300 views

Infection in a village

12 votes
1 answer
159 views

Is $S_R$ finitely generated?

12 votes
1 answer
324 views

Are all almost virtually free groups word hyperbolic?

12 votes
2 answers
353 views

What is $E|\langle A\rangle|$?

12 votes
1 answer
474 views

What is the the sum of orders of all elements of $S_n$?

12 votes
1 answer
304 views

Does there exist some sort of classification of incompressible groups?

12 votes
1 answer
231 views

Searching radioactive balls

11 votes
1 answer
169 views

On group varieties and numbers

11 votes
1 answer
333 views

Does the following object have such property?

11 votes
0 answers
199 views

Does asymmetric fraction of finite groups tend to $0$?

9 votes
0 answers
160 views

Is there some sort of classification of invertible finite groups? [duplicate]

9 votes
0 answers
103 views

Is $[G_p \cap G_q:G_{pq}]$ always finite? v2.0

9 votes
0 answers
97 views

Does there exist $y\in[0, 1]$, such that $f(y) = g(y)$ for each pair of functions $f$ and $g$ under specific conditions? [duplicate]

9 votes
1 answer
527 views

Is this ideal two-sided?

9 votes
1 answer
186 views

Is the following theory consistent?

9 votes
1 answer
241 views

Are all numbers of the type $\frac{n!}{2}+1$ deficient?

9 votes
1 answer
301 views

A question about Frattini subgroup of specific form

8 votes
1 answer
296 views

Is a finite centerless metabelian group always a semidirect product of two abelian groups?

8 votes
2 answers
256 views

Is there a way to describe all finite groups $G$ such that $\operatorname{Aut}(G) \cong S_3$?

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