Sergei Akbarov's user avatar
Sergei Akbarov's user avatar
Sergei Akbarov's user avatar
Sergei Akbarov
  • Member for 12 years, 5 months
  • Last seen this week
56 votes
6 answers
6k views

Is the Mendeleev table explained in quantum mechanics?

45 votes
18 answers
10k views

Mathematical research interrupted by a war

32 votes
1 answer
2k views

Stone-Weierstrass theorem for holomorphic functions?

31 votes
5 answers
3k views

What is the status of the Hilbert 6th problem?

18 votes
5 answers
4k views

Are there textbooks on logic where the references to set theory appear only after the construction of set theory?

18 votes
3 answers
1k views

In which sense the GNS-construction is a functor?

17 votes
0 answers
594 views

Who first noticed the duality for finite groups?

15 votes
2 answers
663 views

Can a continuous function on a compact group $G$ be interpreted as the sum in $C(G)$ of its Fourier series?

15 votes
3 answers
2k views

Which journals publish research announcements?

15 votes
3 answers
1k views

What is known about the category of Hopf algebras?

14 votes
4 answers
2k views

What can be preserved in mathematics if all constructions are carried out in ZF?

13 votes
3 answers
1k views

A characterization of $L_1(\mu)$ in $L_\infty(\mu)^*$

12 votes
6 answers
2k views

Interesting examples of non-locally compact topological groups

11 votes
4 answers
2k views

What are Reinert's reproaches to the Ricardo theory?

9 votes
0 answers
544 views

Is it possible to define Hopf algebra as an object in the category of (associative) algebras?

9 votes
2 answers
696 views

Tannaka-Krein duality in Chari-Pressley's book

8 votes
1 answer
616 views

When does the dual to the space $K(X)$ of compact operators consist of nuclear functionals?

8 votes
1 answer
742 views

A “formalistic” variant of the Gödel completeness theorem

8 votes
0 answers
296 views

when do norm-continuous unitary representations separate points of a group?

8 votes
3 answers
3k views

"Axiom of global choice"

8 votes
1 answer
514 views

Which group algebras in analysis are "true group algebras"?

7 votes
1 answer
255 views

Trigonometric polynomials on non-compact and non-abelian groups

7 votes
3 answers
1k views

Is the category of rings co-well-powered?

7 votes
2 answers
244 views

Multiplication and division by a morphism under the “inner composition” in closed monoidal categories

6 votes
0 answers
463 views

"Fundamental theorem for Hopf modules"

6 votes
1 answer
316 views

Is the unit ball in $L_p$, $1<p<2$, contained in a "compact perturbation" of the unit ball in $L_2$?

6 votes
2 answers
657 views

The topology of pointwise convergence with the adjoint operator on a von Neumann algebra

6 votes
3 answers
1k views

A variant of the Stone-Weierstrass theorem?

6 votes
0 answers
978 views

Correspondence between real forms and real structures on complex Lie groups

6 votes
0 answers
114 views

Categorical description of dense homomorphisms of topological algebras