Results 21 to 30 of about 224,835 (201)
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
doaj +3 more sources
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
doaj +1 more source
Finite groups with weakly subnormal and partially subnormal subgroups
Sibirskii matematicheskii zhurnal, 2021 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Huang, J., Hu, B., Skiba, A. N.
openaire +1 more source
On some groups whose subnormal subgroups are contranormal-free [PDF]
International Journal of Group TheoryIf $G$ 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 +2 more
doaj +1 more source
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
doaj +1 more source
On Subnormal Subgroups of Factorized Groups
Journal of Algebra, 1997 Let the group \(G=AB\) be the product of two subgroups \(A\) and \(B\), and let \(H\) be a subgroup of the intersection \(A\cap B\). A well-known result of Maier and Wielandt says that if \(G\) is finite and the subgroup \(H\) is subnormal in \(A\) and \(B\), then \(H\) is also subnormal in \(G\) [see the book ``Products of groups'', Oxford Univ. Press
DE GIOVANNI, FRANCESCO +2 more
openaire +2 more sources
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
doaj +1 more source
Finite groups with semi-subnormal Schmidt subgroups
, 2020 A Schmidt group is a non-nilpotent group in which every proper subgroup is nilpotent. A subgroup A of a group G is semi-normal in G if there exists a subgroup B of G such that G = AB and AB1 is a proper subgroup of G for every proper subgroup B1 of B. If
Monakhov, V.S., Kniahina, V.N.
core +1 more source
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
doaj +1 more source