Results 21 to 30 of about 1,418,478 (304)
КОНЕЧНО ПОРОЖДЕННЫЕ ПОДГРУППЫ ГИПЕРБОЛИЧЕСКИХ ГРУПП
Устанавливается, что конечно порожденные подгруппы бесконечного индекса в гиперболических группах, не являющихся почти абелевыми, дополняемы нетри- виальным свободным множителем.
А.П. Горюшкин, A.P. Goryushkin
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5 pages, 1 figure. Accepted for publication in the European Journal of Combinatorics.
Henry Crapo, William Schmitt
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НАХОЖДЕНИЕ ИНДЕКСА ПОДГРУППЫ И ПРОБЛЕМА ВХОЖДЕНИЯ
Для отдельных классов групп устанавливаются связи между двумя алгоритмическими проблемами: проблемой вычисления индекса подгруппы и проблемой вхождения.
Goryushkin, A.P.
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Semi-hard pressed goat’s cheese, a traditional matured cheese in Andalusia, has a residual lactose content that may affect people with intolerance to that carbohydrate. Nowadays, lactose-free dairy products are characterized by presenting a scant sensory
Ángel Luis López Ruiz +3 more
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Coproduct of Crossed A-Modules of R-Algebroids
In this study we construct, in the category XAlg(R) / A of crossed A-modules of R-algebroids, the coproduct of given two crossed A-modules M = (μ : M → A) and N = (ɳ : N → A) of R-algebroids in two different ways: Firstly we construct the coproduct M ᴼ ...
Avcıoglu Osman, Akça Ibrahim Ilker
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Faithful group actions and Schreier graphs
Each action of a finitely generated group on a set uniquely defines a labelled directed graph called the Schreier graph of the action. Schreier graphs are used mainly as a tool to establish geometrical and dynamical properties of corresponding group ...
M. Fedorova
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Free product on semihypergroups
In a previous paper [1] [MR4101040], we initiated a systematic study of semihypergroups and had a thorough discussion about some important analytic and algebraic objects associated to this class of objects. In this paper, we investigate free structures on the category of semihypergroups.
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DECOMPOSITIONS OF THE FREE PRODUCT OF GRAPHS [PDF]
We study the free product of rooted graphs and its various decompositions using quantum probabilistic methods. We show that the free product of rooted graphs is canonically associated with free independence, which completes the proof of the conjecture that there exists a product of rooted graphs canonically associated with each notion of ...
ACCARDI, LUIGI +2 more
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On the dimension of the product $[L_2,L_2,L_1]$ in free Lie algebras [PDF]
Let $L$ be a free Lie algebra of rank $rgeq2$ over a field $F$ and let $L_n$ denote the degree $n$ homogeneous component of $L$. By using the dimensions of the corresponding homogeneous and fine homogeneous components of the second derived ideal of ...
Nil Mansuroğlu
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A comultiplication on a monoid S is a homomorphism m:S→S∗S (the free product of S with itself) whose composition with each projection is the identity homomorphism.
Martin Arkowitz, Mauricio Gutierrez
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