Paper «On Sylow permutable subgroups of finite groups» published in Forum Math.

The following paper has been published:
El siguiente artículo ha sido publicado:
El següent article ha sigut publicat:

Adolfo Ballester-Bolinches, Hermann Heineken and Francesca Spagnuolo.
On Sylow permutable subgroups of finite groups.
Forum Math., 29(6):1307-1310, 2017.

Abstract:

A subgroup H of a group G is called Sylow permutable, or S-permutable, in G if H permutes with all Sylow p-subgroups of G for all primes p. A group G is said to be a PST-group if Sylow permutability is a transitive relation in G. We show that a group G which is factorised by a normal subgroup and a subnormal PST-subgroup of odd order is supersoluble. As a consequence, the normal closure S^G of a subnormal PST-subgroup S of odd order of a group G is supersoluble, and the subgroup generated by subnormal PST-subgroups of G of odd order is supersoluble as well.

doi: 10.1515/forum-2016-0262

2020 Mathematics Subject Classification: 20D20, 20D35, 20D40, 20E15.

Keywords: Finite groups, subnormal subgroups, permutability, S-permutability.

Defensa tesis doctoral Francesca Spagnuolo 21/02/2017 12.00

El próximo martes día 21 de febrero de 2017, a las 12.00, se procederá a la defensa de la tesis doctoral de Francesca Spagnuolo titulada «Some results on locally finite groups», dirigida por Adolfo Ballester Bolinches y Francesco de Giovanni, en el salón de grados de la Facultat de Matemàtiques de la Universitat de València.

Estáis todos invitados.

 

Paper “On the supersoluble hypercentre of a finite group” published in Monatsh. Math.

The following paper has been published

El siguiente artículo ha sido publicado

El següent article ha sigut publicat

Liyun Miao, Adolfo Ballester-Bolinches, Ramón Esteban-Romero, and Yangming Li

On the supersoluble hypercentre of a finite group

Monatsh. Math., 184(4):641–648, 2017

https://doi.org/10.1515/forum-2016-0262

Abstract

A subgroup H of a group G is called Sylow permutable, or S-permutable, in G if H permutes with all Sylow p-subgroups of G for all primes p. A group G is said to be a PST-group if Sylow permutability is a transitive relation in G. We show that a group G which is factorised by a normal subgroup and a subnormal PST-subgroup of odd order is supersoluble. As a consequence, the normal closure S^G of a subnormal PST-subgroup S of odd order of a group G is supersoluble, and the subgroup generated by subnormal PST-subgroups of G of odd order is supersoluble as well.

2010 Mathematics Subject Classification: 20D10, 20D20

Keywords: Finite group, p-Supersoluble group, S-semipermutable subgroup