Zobrazeno 1 - 10
of 13
pro vyhledávání: '"M. V. Sapir"'
Autor:
A. Yu. Olshanskii, M. V. Sapir
Publikováno v:
Bulletin of Mathematical Sciences, Vol 10, Iss 1, Pp 1950023-1-1950023-103 (2020)
We construct a finitely presented group with quadratic Dehn function and undecidable conjugacy problem. This solves Rips’ problem formulated in 1994.
Externí odkaz:
https://doaj.org/article/19c590253f364670959d187a74807674
Autor:
A. Yu. Ol′shanskii, M. V. Sapir
Publikováno v:
Contemporary Mathematics. :203-208
Autor:
A. Yu. Ol’shanskii, M. V. Sapir
For every finitely generated recursively presented group $\mathcal G$ we construct a finitely presented group $\mathcal H$ containing $\mathcal G$ such that $\mathcal G$ is (Frattini) embedded into $\mathcal H$ and the group $\mathcal H$ has solvable
Autor:
T. E. Hall, M. V. Sapir
Publikováno v:
Discrete Mathematics. 161:151-160
If n is the number of nonidempotent elements of a finite semigroup S , it is shown that each sequence of length 2 n of elements of S contains a consecutive subsequence whose product is an idempotent element, and that 2 n is the best possible among al
Publikováno v:
Algebra Universalis. 31:580-588
Autor:
M V Sapir
Publikováno v:
Mathematics of the USSR-Sbornik. 68:567-584
A minimal variety of associative algebras with unsolvable word problem is determined. Bibliography: 14 titles.
Autor:
A. Yu. Ol′shanskii, M. V. Sapir
For every finitely generated recursively presented group G we construct a finitely presented group H containing G such that G is (Frattini) embedded into H and the group H has solvable conjugacy problem if and only if G has solvable conjugacy problem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a1548a067ad0428e454ebb75669536d
http://arxiv.org/abs/math/0212227
http://arxiv.org/abs/math/0212227
Autor:
Mikhail V. Volkov, M. V. Sapir
Publikováno v:
Proceedings of the American Mathematical Society
Proceedings Of The American Mathematical Society
Proceedings Of The American Mathematical Society
We show that the join of a variety of semigroups and the variety of all commutative semigroups is not finitely based, provided some weak conditions. © 1994 American Mathematical Society.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46157d68920455bd025fea2d387336a5
https://www.ams.org/proc/1994-120-02/S0002-9939-1994-1185274-1/S0002-9939-1994-1185274-1.pdf
https://www.ams.org/proc/1994-120-02/S0002-9939-1994-1185274-1/S0002-9939-1994-1185274-1.pdf
Autor:
D I, Benediktov, M V, Sapir
Publikováno v:
Akusherstvo i ginekologiia. (4)
Autor:
V. S. Guba, M. V. Sapir
Publikováno v:
Proceedings of the American Mathematical Society; Jul1999, Vol. 127 Issue 7, p1885-1891, 7p