Results 11 to 20 of about 49,111 (227)

The p-torsion subgroup scheme of an elliptic curve [PDF]

open access: greenJournal of Number Theory, 2011
Let $k$ be a field of positive characteristic $p$. Question: Does every twisted form of $ _p$ over $k$ occur as subgroup scheme of an elliptic curve over $k$? We show that this is true for most finite fields, for local fields and for fields of characteristic $p\leq11$.
Christian Liedtke
openalex   +3 more sources

Inferior oblique graded marginal myotomy versus myectomy for treatment of inferior oblique overaction [PDF]

open access: yesIndian Journal of Ophthalmology
Purpose: To evaluate and compare the surgical outcomes of inferior oblique marginal myotomy versus myectomy for treatment of inferior oblique overaction (in terms of correction of upshoot on adduction, V pattern, vertical deviation, torsion, and abnormal
Mai Mostafa Ismail Hassan   +4 more
doaj   +2 more sources

Geometric orbifolds with torsion free derived subgroup

open access: greenSiberian Mathematical Journal, 2010
The paper under review deals with orientable geometric three-orbifolds with underlying space the three-sphere. It gives a criterion to decide whether the maximal abelian covering is a manifold. Being a manifold is equivalent to saying that its branching locus is nonempty.
Rubén A. Hidalgo, Alexander Mednykh
openalex   +7 more sources

Decompressive fasciotomy in testicular torsion of the spermatic cord in rats [PDF]

open access: yesActa Cirúrgica Brasileira, 2013
PURPOSE: To evaluate the effect of decompression fasciotomy on testes undergoing torsion of the spermatic cord. METHODS: Spermatic cord torsion was induced in 40 Wistar testes for six and 12 hours.
Isabela Passos Pereira Quintaes   +4 more
doaj   +3 more sources

Pure subgroups of torsion-free groups [PDF]

open access: yesTransactions of the American Mathematical Society, 1987
In this paper, we show that certain new notions of purity stronger than the classical concept are relevant to the study of torsion-free abelian groups. In particular, implications of ∗ {\ast } -purity, a concept introduced in one of our recent papers, are investigated. We settle an open question (posed by Nongxa) by proving
Hill, Paul, Megibben, Charles
openaire   +1 more source

A note on torsion length and torsion subgroups

open access: yesJournal of Group Theory, 2022
Abstract Answering Questions 19.23 and 19.24 from the Kourovka notebook, we construct polycyclic groups with arbitrary torsion lengths and give examples of finitely presented groups whose quotients by their torsion subgroups are not finitely presented.
Leary, Ian, Minasyan, Ashot
openaire   +4 more sources

Torsion locally nilpotent groups with non-Dedekind norm of Abelian non-cyclic subgroups

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
The authors study relations between the properties of torsion locally nilpotent groups and their norms of Abelian non-cyclic subgroups. The impact of the norm of Abelian non-cyclic subgroups on the properties of the group under the condition of norm non ...
T.D. Lukashova, M.G. Drushlyak
doaj   +1 more source

Teleparallelism in the algebraic approach to extended geometry

open access: yesJournal of High Energy Physics, 2022
Extended geometry is based on an underlying tensor hierarchy algebra. We extend the previously considered L ∞ structure of the local symmetries (the diffeomorphisms and their reducibility) to incorporate physical fields, field strengths and Bianchi ...
Martin Cederwall, Jakob Palmkvist
doaj   +1 more source

Pathologic external tibial torsion as one of the causes of knee joint dysfunction and formation of pronation deformity in children with cerebral palsy

open access: yesХірургія дитячого віку, 2023
Introduction. One of the complications of the clinical course of cerebral palsy in children is external torsion of the tibia. The issue of localization and the mechanism of its formation, as well as effective methods of its elimination, is debatable ...
A.A. Danylov   +3 more
doaj   +1 more source

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