Results 21 to 30 of about 267,117 (320)

Analytic torsion and Reidemeister torsion [PDF]

open access: yesProceedings of the National Academy of Sciences, 1977
We announce a proof of the conjecture of Ray and Singer that for a compact Riemannian manifold the analytic torsion and Reidemeister torsion are equal. The proof involves studying the heat equation for certain manifolds M, equipped with metrics g u , 0 < u
openaire   +3 more sources

Torsion and fibrations [PDF]

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 1998
We study the behaviour of analytic torsion under smooth fibrations. Namely, let F \to E \to^{f} B be a smooth fiber bundle of connected closed oriented smooth manifolds and let $V$ be a flat vector bundle over $E$. Assume that $E$ and $B$ come with Riemannian metrics and $V$ comes with a unimodular (not necessarily flat) Riemannian metric. Let $ _{an}(
Lück, Wolfgang   +2 more
openaire   +5 more sources

Friedmann-like universes with torsion [PDF]

open access: yesThe European Physical Journal C, 2018
We consider spatially homogeneous and isotropic cosmologies with non-vanishing torsion, which assumes a specific form due to the high symmetry of these universes.
Dimitrios Kranas   +3 more
semanticscholar   +1 more source

Torsion without torsion

open access: yesPhysics Letters B, 1979
Abstract Modifying the Yang-Mills field strength and using a recently proposed generalisation of the usual minimal coupling procedure allows a simple but non-trivial type of dynamic torsion to couple to all gauge fields in a consistent manner. This allows, for the first time, a framework in which no spinning particle is required to be exempted from ...
W.A. Sayed, C. Mukku
openaire   +2 more sources

Differences in Femoral Torsion Among Various Measurement Methods Increase in Hips With Excessive Femoral Torsion

open access: yesClinical Orthopaedics and Related Research, 2019
Background Correct quantification of femoral torsion is crucial to diagnose torsional deformities, make an indication for surgical treatment, or plan the amount of correction.
F. Schmaranzer   +4 more
semanticscholar   +1 more source

Non-Geodesic Incompleteness in Poincaré Gauge Gravity

open access: yesEntropy, 2019
In this work, we review the study of singularities in Poincaré gauge theories of gravity. Since one of the most recent studies used the appearance of black hole regions of arbitrary dimension as an indicator of singular behavior, we also give some
José Alberto Ruiz Cembranos   +2 more
doaj   +1 more source

Axial torsion and gangrene of Meckel’s diverticulum: Case report [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2015
Introduction. Meckel’s diverticulum (MD) is the most prevalent congenital anomaly of small intestine. It develops due to the incomplete obliteration of omphalomesenterict duct which normally undergoes obliteration during the seventh week of ...
Radović Saša V.   +3 more
doaj   +1 more source

The Impact of Testicular Torsion on Testicular Function

open access: yesThe World Journal of Men's Health, 2019
Torsion of the spermatic cord is a urological emergency that must be treated with acute surgery. Possible long-term effects of torsion on testicular function are controversial.
F. M. Jacobsen   +6 more
semanticscholar   +1 more source

The Results of Surgical Treatment for Cyclotropia

open access: yesTürk Oftalmoloji Dergisi, 2012
Pur po se: To describe the effectiveness of oblique muscle surgery for cyclodeviations with vertical deviations. Ma te ri al and Met hod: Twenty-two eyes of 17 patients with cyclotropia were included in the study.
Sibel Kocabeyoğlu   +2 more
doaj   +1 more source

On a group whose generalized torsion elements are torsion elements [PDF]

open access: yesarXiv, 2023
We show that a group whose generalized torsion elements are torsion elements (which we call a $TR^{*}$-group) is torsion-by-$R^{*}$ group, an extension of torsion group by a group without generalized torsion elements. We also discuss a generalized torsion group, a group all of whose non-trivial elements are generalized torsion elements.
arxiv  

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