Results 41 to 50 of about 224,835 (201)
On numbers which are orders of nilpotent groups with bounded class [PDF]
International Journal of Group TheoryLet $n$ be a positive integer. In this short note, we characterize those numbers $m$ for which any group of order $m$ is an $n$-Engel group and those numbers $m$ for which any group of order $m$ has all its subgroups subnormal of defect at most $n$.
Maria Ferrara
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Residually Nilpotent Groups with All Subgroups Subnormal [PDF]
, 2001 The main result established here is that if G is a locally finite group that has all subgroups subnormal and is residually nilpotent then G is ...
Smith, Howard
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On certain subgroups of a join of subnormal subgroups [PDF]
Glasgow Mathematical Journal, 1984 1. Introduction: Suppose the group G is generated by subnormal subgroups H and K, and that A, B are normal subgroups of finite index in H, Krespectively. The following question has been asked by J. C. Lennox: Under what circumstances is the subgroupJ = (A, B) subnormal in G? In particular, it is of interest to know when J has finite index in G, for, if
openaire +1 more source
Nursing Open, Volume 13, Issue 5, May 2026.ABSTRACT Aim To investigate the risk factors for postoperative hypoproteinemia in patients undergoing microsurgical reconstructive surgery and to develop a prediction model to support nurses in identifying patients at high risk. Design A prospective observational study.
Huijuan Qian +6 more
wiley +1 more source
Nilpotence of Subnormal Subgroups in U(ZG)
, 2002 Nilpotence of Subnormal Subgroups in U ...
Parmenter, M.M.
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Groups with conjugacy classes of coprime sizes
Bulletin of the London Mathematical Society, Volume 58, Issue 3, March 2026.Abstract Suppose that x$x$, y$y$ are elements of a finite group G$G$ lying in conjugacy classes of coprime sizes. We prove that ⟨xG⟩∩⟨yG⟩$\langle x^G \rangle \cap \langle y^G \rangle$ is an abelian normal subgroup of G$G$ and, as a consequence, that if x$x$ and y$y$ are π$\pi$‐regular elements for some set of primes π$\pi$, then xGyG$x^G y^G$ is a π ...
R. D. Camina +8 more
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Exponential and weakly exponential subgroups of finite groups [PDF]
International Journal of Group TheorySabatini [L. Sabatini, Products of subgroups, subnormality, and relative orders of elements, Ars Math. Contemp., 24 no. 1 (2024) 9 pp.] defined a subgroup $H$ of $G$ to be an exponential subgroup if $x^{|G:H|} \in H$ for all $x \in G$, in which case we ...
Eric Swartz, Nicholas J. Werner
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Hemodynamic changes in pregnancies with impaired fetal growth: A systematic review and meta‐analysis
Acta Obstetricia et Gynecologica Scandinavica, Volume 105, Issue 2, Page 215-224, February 2026.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.
Britt M. J. G. Kempener +9 more
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Acta Ophthalmologica, Volume 104, Issue 1, Page 65-74, February 2026.Abstract Purpose The Extremely Preterm Infants in Sweden Study (EXPRESS) followed a national cohort of extremely preterm born (EPT, i.e. <27 weeks) children until 12 years of age. This study aimed to investigate the longitudinal development of visual acuity (VA) in children born EPT, explore the predictive value of early visual assessments, and ...
Despoina Tsamadou +12 more
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On Wielandt's theory of subnormal subgroups
, 2010 The classic Zipper lemma of Wielandt on subnormal subgroups is generalized.
Flavell, Paul
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