Zobrazeno 1 - 10
of 191
pro vyhledávání: '"A Maltcev"'
Publikováno v:
Вестник хирургии имени И.И. Грекова, Vol 181, Iss 2, Pp 33-38 (2022)
The OBJECTIVE was to evaluate long-term results of the use of «closed» techniques of surgical treatment of pilonidal disease.METHODS AND MATERIALS. The study included 147 patients who underwent excision of the pilonidal sinuses according to Karydak
Externí odkaz:
https://doaj.org/article/0f2033d661eb42b794dbf75325dd213a
Using a construction that builds a monoid from a monoid action, this paper exhibits an example of a direct product of monoids that admits a prefix-closed regular cross-section, but one of whose factors does not admit a regular cross-section; this ans
Externí odkaz:
http://arxiv.org/abs/1803.10747
Autor:
Andrey А. Maltcev
Publikováno v:
Записки Горного института, Vol 251, Pp 678-687 (2021)
Acid treatment of wells program is directly related to oil production efficiency. Investigations aimed at improving the efficiency of acid treatment in a terrigenous reservoir have mainly reviewed the changing and adapting the reagents to minimize br
Externí odkaz:
https://doaj.org/article/10c4b5ff62144e0eae8e74aaef09ffd4
Publikováno v:
Organizacija, Vol 53, Iss 2, Pp 95-110 (2020)
Background and purpose: Trust is embedded into the national culture. It is a tool that helps create strategic partnerships and facilitates deals that carry certain risks. Cultural differences and norms can affect business relations, but more often fo
Externí odkaz:
https://doaj.org/article/b26c67cf7b124fd688e1f1439b612d29
Autor:
Cain, Alan J., Maltcev, Victor
This paper makes a comprehensive survey of results relating to finite Rees index for semigroups. In particular, we survey of the state of knowledge on whether various finiteness properties (such as finite generation, finite presentability, automatici
Externí odkaz:
http://arxiv.org/abs/1307.8259
Autor:
Maltcev, Victor, Ruskuc, N.
If a finitely generated semigroup S has a hopfian (meaning: every surjective endomorphism is an automorphism) cofinite subsemigroup T then S is hopfian too. This no longer holds if S is not finitely generated. There exists a finitely generated hopfia
Externí odkaz:
http://arxiv.org/abs/1307.6929
Autor:
Cain, Alan J., Maltcev, Victor
Publikováno v:
Semigroup Forum, 90, no. 1 (Febuary 2015), pp. 184--188
We exhibit an example of a finitely presented monoid that is congruence-free and simple but not bisimple.
Comment: 5 pages
Comment: 5 pages
Externí odkaz:
http://arxiv.org/abs/1307.6580
Autor:
Cain, Alan J., Maltcev, Victor
Publikováno v:
Demonstratio Mathematica, 47, no. 4 (2014), pp. 791--804
This paper investigates the preservation of hopficity and co-hopficity on passing to finite-index subsemigroups and extensions. It was already known that hopficity is not preserved on passing to finite Rees index subsemigroups, even in the finitely g
Externí odkaz:
http://arxiv.org/abs/1305.6176
We prove that monoids $\mathrm{Mon}\langle a,b,c,d : a^nb=0, ac=1, db=1, dc=1, dab=1, da^2b=1, \ldots, da^{n-1}b=1\rangle$ are congruence-free for all $n\geq 1$. This provides a new countable family of finitely presented congruence-free monoids, brin
Externí odkaz:
http://arxiv.org/abs/1304.4687
In this paper we study ends of finitely generated semigroups. The ends we are working with are the ends of the undirected graphs of Cayley graphs of finitely generated semigroups. We prove that the number of ends is preserved for subsemigroups of fin
Externí odkaz:
http://arxiv.org/abs/1302.3500