Zobrazeno 1 - 10
of 250
pro vyhledávání: '"Adolfo Ballester-Bolinches"'
Publikováno v:
Computation, Vol 11, Iss 3, p 43 (2023)
The Kronecker algebra K is the path algebra induced by the quiver with two parallel arrows, one source and one sink (i.e., a quiver with two vertices and two arrows going in the same direction). Modules over K are said to be Kronecker modules. The cl
Externí odkaz:
https://doaj.org/article/f9f256173f44485494fd4024d1e1ecdc
Publikováno v:
Computation, Vol 11, Iss 1, p 2 (2022)
Currently, researching the Yang–Baxter equation (YBE) is a subject of great interest among scientists of diverse areas in mathematics and other sciences. One of the fundamental open problems is to find all of its solutions. The investigation deals
Externí odkaz:
https://doaj.org/article/cdc281dedc594b7d8ecd61d0bb41b750
Publikováno v:
Mathematics, Vol 10, Iss 7, p 1153 (2022)
The determination of bounds for the number of maximal subgroups of a given index in a finite group is relevant to estimate the number of random elements needed to generate a group with a given probability. In this paper, we obtain new bounds for the
Externí odkaz:
https://doaj.org/article/d2d6c8f53b7840d6b3fb6aae16f0ee95
Autor:
Adolfo Ballester-Bolinches
Publikováno v:
International Journal of Group Theory, Vol 7, Iss 2, Pp 25-29 (2018)
The aim of this survey article is to present some structural results about of groups whose Sylow p-subgroups are metacylic (p a prime). A complete characterisation of non-nilpotent groups whose 2-generator subgroups are metacyclic is also pr
Externí odkaz:
https://doaj.org/article/43f36276e3c1449e901bedb88772ae2d
Publikováno v:
Advances in Group Theory and Applications, Vol 2, Pp 25-30 (2016)
Our first main result proves that every element of order 4 of a Sylow 2-subgroup S of a minimal non-2-nilpotent group G, is a real element of S. This allows to give a character-free proof of a theorem due to Isaacs and Navarro (see [9, Theorem B]). A
Externí odkaz:
https://doaj.org/article/2d7de8955c6f40c281c574848da386e4
Publikováno v:
Mathematics, Vol 8, Iss 12, p 2165 (2020)
Let σ={σi:i∈I} be a partition of the set P of all prime numbers and let G be a finite group. We say that G is σ-primary if all the prime factors of |G| belong to the same member of σ. G is said to be σ-soluble if every chief factor of G is σ-
Externí odkaz:
https://doaj.org/article/10132010397f4aa4a1822a7247de39e8
Publikováno v:
Mathematics, Vol 8, Iss 1, p 105 (2020)
The purpose of this note is to give a very elementary proof of a theorem of Graham that provides a structural description of finite 0-simple semigroups and its idempotent-generated subsemigroups.
Externí odkaz:
https://doaj.org/article/0924392653d142b6bfd395a0fb78bdfb
The study of finite groups factorised as a product of two or more subgroups has become a subject of great interest during the last years with applications not only in group theory, but also in other areas like cryptography and coding theory. It has e
Autor:
Ramon Esteban-Romero, Adolfo Ballester-Bolinches, Sesuai Madanha, Mari Carmen Pedraza-Aguilera
Publikováno v:
Bulletin of the Australian Mathematical Society. 107:271-275
In this note, we investigate some products of subgroups and vanishing conjugacy class sizes of finite groups. We prove some supersolubility criteria for groups with restrictions on the vanishing conjugacy class sizes of their subgroups.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0036ba4be7d3201886dabd793548028
https://doi.org/10.1017/s000497272200065x
https://doi.org/10.1017/s000497272200065x
Publikováno v:
Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas. 117
Let $$\sigma = \{ {\sigma }_{i}: i \in I \}$$ σ = { σ i : i ∈ I } be a partition of the set $${\mathbb {P}}$$ P of all prime numbers. A subgroup X of a finite group G is called $$\sigma $$ σ -subnormal in G if there is a chain of subgroups $$\be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::698f8311a29e05c96ac139ab797ae123
https://doi.org/10.1007/s13398-023-01443-5
https://doi.org/10.1007/s13398-023-01443-5