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FNH
  • Member for 11 years, 5 months
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66 votes
5 answers
19k views

Is there any branch of Mathematics which has no applications in any other field or in real world?

56 votes
6 answers
28k views

Why are box topology and product topology different on infinite products of topological spaces?

25 votes
2 answers
8k views

Can the semidirect product of two groups be abelian group?

22 votes
1 answer
3k views

What is computational group theory?

20 votes
4 answers
3k views

“$f$ is a function from $A$ to $B$” vs. “$f $is a function from $A$ into $B$”?

19 votes
2 answers
3k views

Under what conditions does a ring R have the property that every zero divisor is a nilpotent element?

18 votes
6 answers
3k views

What is the importance of examples in the study of group theory?

15 votes
1 answer
823 views

How to formulate the P v.s. NP problem as a formal statement inside the language of set theory?

14 votes
6 answers
3k views

Does every infinite group have a maximal subgroup?

14 votes
7 answers
2k views

Is there any book/resource which explain the general idea of the proof of Fermat's last theorem?

13 votes
4 answers
6k views

Which texts do you recommend to study universal algebra and lattice theory?

12 votes
1 answer
2k views

Formalizing the meta-language of First order Logic and studying it as a formal system

12 votes
1 answer
1k views

A text that can accompany this Course on "Geometry for theoretical physics"

11 votes
4 answers
922 views

Which texts to study mathematical logic, for subsequently studying Godel's incompleteness theorems?

10 votes
3 answers
7k views

prove : if $G$ is a finite group of order $n$ and $p$ is the smallest prime dividing $|G|$ then any subgroup of index $p$ is normal

10 votes
2 answers
2k views

Which mathematical topics is knot theory related to?

10 votes
3 answers
1k views

What are some useful problem solving strategies for real analysis?

9 votes
9 answers
3k views

what is the definition of Mathematics ? [closed]

9 votes
2 answers
6k views

how can we convert sin function into continued fraction?

9 votes
2 answers
3k views

What are the rules for the use of dots rather than parentheses in logical formulae?

9 votes
2 answers
4k views

Facts about Abelian Groups and group order.

9 votes
2 answers
202 views

How does this strange phenomena happen in quotient of groups ?

9 votes
2 answers
2k views

Prove that if $x$ is a non-zero rational number, then $\tan(x)$ is not a rational number and use this to prove that $\pi$ is not a rational number.

8 votes
2 answers
4k views

The order of a conjugacy class is bounded by the index of the center

8 votes
2 answers
10k views

Is the lower limit topology finer than the standard topology on $\mathbb{R}$?

8 votes
2 answers
1k views

If $G$ is a group, $H$ is a subgroup of $G$ and $g\in G$, is it possible that $gHg^{-1} \subset H$? [duplicate]

8 votes
3 answers
5k views

Prove that: the center of any group is characteristic subgroup .

8 votes
4 answers
833 views

Is there a nice way to find this integral $\int_0^1\frac{ \arcsin x}{x} \mathrm{d}x$?

8 votes
1 answer
2k views

What is the difference between algebraic number theory, arithmetic geometry and diophantine geometry?

8 votes
2 answers
724 views

Good resources for studying independence proofs

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