Results 301 to 310 of about 773,208 (320)
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On the torsion subgroup of Ext (A, G)
Archiv der Mathematik, 1979Martin C. E. Huber, R. Warfield
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Torsion-free groups in which every subgroup is subnormal
Rendiconti del Circolo Matematico di Palermo, 2001zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Carlo Casolo
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Totally permutable torsion subgroups [PDF]
Journal of Group Theory, 1999 The well known fact that the product of two normal supersoluble subgroups is not in general supersoluble makes interesting the study of factorized groups whose subgroup factors are connected by certain permutability properties. In particular, \textit{M. Asaad} and \textit{A. Shaalan} [in Arch. Math. 53, No. 4, 318-326 (1989; Zbl 0685.20018)] introduced
H. Heineken, J. Beidleman
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Improved Torsion-Point Attacks on SIDH Variants
Annual International Cryptology Conference, 2020SIDH is a post-quantum key exchange algorithm based on the presumed difficulty of finding isogenies between supersingular elliptic curves. However, SIDH and related cryptosystems also reveal additional information: the restriction of a secret isogeny to ...
Victoria de Quehen +6 more
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Mod p and torsion homology growth in nonpositive curvature
Inventiones Mathematicae, 2020We compute the mod p homology growth of residual sequences of finite index normal subgroups of right-angled Artin groups. We find examples where this differs from the rational homology growth, which implies the homology of subgroups in the sequence has ...
Grigori Avramidi, B. Okun, K. Schreve
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Minimal models of rational elliptic curves with non-trivial torsion
Research in Number Theory, 2020In this paper, we explicitly classify the minimal discriminants of all elliptic curves E/Q\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs ...
Alexander J. Barrios
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Torsion Subgroups of Incidence Algebras
Communications in Algebra, 2006Certain torsion subgroups of the incidence algebra are shown to be Abelian. If the underlying partially ordered set is finite, it is shown that there is a matrix within the incidence algebra which simultaneously diagonalizes each element of such a subgroup.
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Torsion-free groups with all subgroups subnormal
Archiv der Mathematik, 2001Over the last thirty-five years there has been a major effort to understand the structure of groups in which every subgroup is subnormal. This culminated in the important result of Möhres that such groups are soluble. Here the author studies torsion-free groups with every subgroup subnormal and he improves his previous result by showing that such ...
Howard Smith, Gunnar Traustason
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Tight subgroups in torsion-free Abelian groups
Israel Journal of Mathematics, 2003The paper deals with ``tight subgroups'' of torsion-free Abelian groups, namely those subgroups that are maximal with respect to being completely decomposable. Tight subgroups were first studied by \textit{K. Benabdallah}, \textit{A. Mader} and \textit{M. A. Ould-Beddi} [J. Algebra 225, No.
Lutz Strüngmann, Mohamed A. Ould-Beddi
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Journal of Obstetrics and Gynaecology Research, 2018
This retrospective study aimed to evaluate the sonographic diagnosis and management strategy of symptomatic adnexal torsion at a teaching hospital in Hyderabad, India.
Padmasree Resapu +5 more
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This retrospective study aimed to evaluate the sonographic diagnosis and management strategy of symptomatic adnexal torsion at a teaching hospital in Hyderabad, India.
Padmasree Resapu +5 more
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