Results 11 to 20 of about 5,518 (174)

Groups with many subnormal subgroups

Journal of Algebra, 2003
According to a classical result of Roseblade there is a function \(\rho\) such that all groups with all subgroups subnormal of defect at most \(n\) are nilpotent of class at most \(\rho(n)\). The groups considered here have the property that all subgroups containing a fixed finite subgroup \(F\) are subnormal of defect at most \(n\). Main results: If \(
Eloisa Detomi
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Hemodynamic changes in pregnancies with impaired fetal growth: A systematic review and meta-analysis. [PDF]

Acta Obstet Gynecol Scand
Maternal cardiovascular adaptation is altered in pregnancies complicated by impaired fetal growth. From the second trimester onwards, lower cardiac output and increased total peripheral vascular resistance emerge, highlighting the need for early hemodynamic monitoring and potential interventions in at‐risk pregnancies.
Kempener BMJG, Jorissen LM, Mulder EG, Ghossein-Doha C, van Drongelen J, Scholten RR, Lees CC, de Haas S, Janssen EBNJ, Spaanderman MEA.   +9 more
europepmc   +2 more sources

Study on 25 (OH) Vitamin D Status in Hospitalizied Children with Acute Respiratory Infections: Preliminary Results [PDF]

Journal of Biomedical & Clinical Research, 2023
Our study aimed to determine and analyze the serum levels of 25 (OH) vitamin D and parathyroid hormone (PTH) to assess vitamin D deficiency as a risk factor for increased morbidity of acute respiratory infections (ARI) in childhood.
Gena Petkova, Boiko Shentov
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Finite groups whose maximal subgroups of even order are MSN-groups

Open Mathematics, 2022
A finite group GG is called an MSN-group if all maximal subgroups of the Sylow subgroups of GG are subnormal in GG. In this article, we investigate the structure of finite groups GG such that GG is a non-MSN-group of even order in which every maximal ...
Wang Wanlin, Guo Pengfei
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On some groups whose subnormal subgroups are contranormal-free [PDF]

International Journal of Group Theory
If $G$ is a group, a subgroup $H$ of $G$ is said to be contranormal in $G$ if $H^G = G$, where $H^G$ is the normal closure of $H$ in $G$. We say that a group is contranormal-free if it does not contain proper contranormal subgroups.
Leonid Kurdachenko, Patrizia Longobardi, Mercede Maj   +2 more
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On the Finite Group Which Is a Product of Two Subnormal Supersolvable Subgroups

Mathematics, 2022
Let G be a finite group that is a product of two subnormal ( normal) supersolvable subgroups. The following are interesting topics in the study of the structure of G: obtaining the conditions in addition to guarantee that G is supersolvable and giving ...
Yangming Li, Yubo Lv, Xiangyang Xu
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Permutable subnormal subgroups of finite groups [PDF]

Archiv der Mathematik, 2009
The aim of this paper is to prove certain characterization theorems for groups in which permutability is a transitive relation, the so called PT -groups. In particular, it is shown that the finite solvable PT -groups, the finite solvable groups in which every subnormal subgroup of defect two is permutable, the finite solvable groups in which every ...
Ballester-Bolinches, Adolfo, Beidleman, J C, Cossey, Peter (John), Esteban-Romero, R, Ragland, M F, Schmidt, Jack   +5 more
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Finite groups with given systems of generalised σ-permutable subgroups

Журнал Белорусского государственного университета: Математика, информатика, 2021
Let σ = {σi|i ∈ I } be a partition of the set of all primes ℙ and G be a finite group. A set ℋ  of subgroups of G is said to be a complete Hall σ-set of G if every member ≠1 of ℋ  is a Hall σi-subgroup of G for some i ∈ I and ℋ contains exactly one Hall ...
Viktoria S. Zakrevskaya
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Joins of Almost Subnormal Subgroups [PDF]

Proceedings of the Edinburgh Mathematical Society, 1979
Following (1) we say that a subgroup H of a group G is almost subnormal in G if H is of finite index in some subnormal subgroup of G, or, equivalently, if |Hn : H| is finite for some n, where Hn is the n-th term of the normal closure series of H in G. The aim of this article is to prove, in answer to a question of R. Baer, the following analogue of the
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Finite groups in which normality, permutability or Sylow permutability is transitive

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
Y. Li gave a characterization of the class of finite soluble groups in which every subnormal subgroup is normal by means of NE-subgroups: a subgroup H of a group G is called an NE-subgroup of G if NG(H) ∩ HG = H. We obtain a new characterization of these
Malinowska Izabela Agata
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