Results 91 to 100 of about 760,948 (301)

A note on torsion-free locally cyclic quasinormal subgroups [PDF]

Journal of Algebra, 2015
Abstract We discuss properties of subgroups as in the title. Our main result is a theorem of Maier–Schmid type: all locally cyclic, core-free quasinormal subgroups of a group G necessarily are contained in the hypercentre of G. This property was known to hold for periodic subgroups of this kind.
CUTOLO, GIOVANNI, LEONE, ANTONELLA
openaire   +2 more sources

Cognition–Eye–Brain Connection in Alzheimer's Disease Spectrum Revealed by Multimodal Imaging

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background The connection between cognition, eye, and brain remains inconclusive in Alzheimer's disease (AD) spectrum disorders. Purpose To explore the relationship between cognitive function, retinal biometrics, and brain alterations in the AD spectrum. Study Type Prospective.
Yan Shi, Tingting Shen, Su Yan, Jianwen Liang, Tianyunxi Wei, Yijin Huang, Rong Gao, Ning Zheng, Renpuchi Ci, Min Zhang, Xiaoying Tang, Yuanyuan Qin, Wenzhen Zhu   +12 more
wiley   +1 more source

non-divisibility for abelian groups

پژوهش‌های ریاضی, 2022
Introduction   In Throughout all groups are abelian. Suppose that G is a group and n is a positive integer. For a ∈ G, if we consider the solution of the equation nx = a in G, two subsets of G are proposed.
mohammad reza vedadi, yaser Tolooei
doaj  

Groups Factorized by Pairwise Permutable Abelian Subgroups of Finite Rank [PDF]

Advances in Group Theory and Applications, 2016
It is proved that a group which is the product of pairwise permutable abelian subgroups of finite Prüfer rank is hyperabelian with finite Prüfer rank; in the periodic case the Sylow subgroups of such a product are described.
Bernhard Amberg, Yaroslav P. Sysak
doaj   +1 more source

Natural progression and prediction markers in non‐clinically significant oesophageal varices in children

Journal of Pediatric Gastroenterology and Nutrition, EarlyView.
Abstract Objectives Limited literature exists on non‐clinically significant varices (nCSV) and progression in children with portal hypertension (PHT). This study investigates trends and associations in this cohort. Methods This retrospective cohort study analysed 70 children with nCSV undergoing surveillance endoscopy between January 2012 and 2024 ...
Cody Chan, Akshat Goel, Robert Hegarty, Bethany Tucker, Vandana Jain, Eirini Kyrana, Tassos Grammatikopoulos   +6 more
wiley   +1 more source

Higher isokinetic quadriceps peak force is associated with a patient‐acceptable symptom‐state 1 and 3 years after ACL reconstruction

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose The main purpose was to determine cut‐off values for absolute (QNm/kg) and relative (QLSI) isokinetic knee extensor (KE) strength for achieving a patient‐acceptable symptom state (PASS) in the Knee injury and Osteoarthritis Outcome Score (KOOS) subscales and for different age groups to determine the association between QNm/kg and QLSI ...
Farshad Ashnai, Roland Thomeé, Eric Hamrin Senorski, Susanne Beischer   +3 more
wiley   +1 more source

Partial Hasse invariants, partial degrees and the canonical subgroup

, 2017
If the Hasse invariant of a $p$-divisible group is small enough, then one can construct a canonical subgroup inside its $p$-torsion. We remark that, assuming the existence of a subgroup of adequate height in the $p$-torsion whose dual has small degree ...
Bijakowski, Stéphane
core   +2 more sources

On the torsion of rational elliptic curves over sextic fields [PDF]

Mathematics of Computation, 2018
Given an elliptic curve $E/\mathbb{Q}$ with torsion subgroup $G = E(\mathbb{Q})_{\rm tors}$ we study what groups (up to isomorphism) can occur as the torsion subgroup of $E$ base-extended to $K$, a degree 6 extension of $\mathbb{Q}$.
Harris B. Daniels, Enrique González–Jiménez   +1 more
semanticscholar   +1 more source

A remark on the torsion subgroups of elliptic curves

Journal of Pure and Applied Algebra, 1997
AbstractA uniform bound is given for the order of the torsion subgroup of E(K), the group of K-rational points on an elliptic curve E defined over a number field k, with K quadratic over k.
openaire   +2 more sources

Thin flap sulcus‐deepening trochleoplasty in patellar instability yields good functional outcomes without progressive cartilage deterioration in the short‐term follow‐up—A retrospective single‐surgeon cohort study

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Thin‐flap sulcus‐deepening trochleoplasty with medial patellofemoral ligament reconstruction is a safe and effective procedure in patellar instability and high‐grade trochlear dysplasia, with no cartilage deterioration after 34.8 ± 20.9 months. Abstract Purpose Sulcus‐deepening trochleoplasty (TP) effectively treats patellofemoral (PF) instability (PFI)
Jannik Frings, Eva Janssen, Matthias Krause, Karl‐Heinz Frosch, Eik Vettorazzi, Andreas Weiler, Arno Schmeling   +6 more
wiley   +1 more source