Boris Novikov's user avatar
Boris Novikov's user avatar
Boris Novikov's user avatar
Boris Novikov
  • Member for 12 years, 5 months
  • Last seen more than 10 years ago
7 votes
1 answer
719 views

How is called a semigroup...

4 votes
2 answers
515 views

polynomial maps

4 votes
0 answers
237 views

Factorization of equivariant maps

3 votes
0 answers
212 views

The Kleene theorem

2 votes
3 answers
491 views

Generalized free product of semigroups with amalgamated subsemigroups

1 vote
2 answers
359 views

non-Hopfian groups