Results 61 to 70 of about 773,208 (320)
Surface subgroups of Kleinian groups with torsion [PDF]
Inventiones mathematicae, 2009 We prove that every finitely generated Kleinian group that contains a finite, non-cyclic subgroup either is finite or virtually free or contains a surface subgroup. Hence, every arithmetic Kleinian group contains a surface subgroup.
openaire +4 more sources
On twists of modules over non-commutative Iwasawa algebras [PDF]
, 2015 It is well known that, for any finitely generated torsion module M over the Iwasawa algebra Z_p [[{\Gamma} ]], where {\Gamma} is isomorphic to Z_p, there exists a continuous p-adic character {\rho} of {\Gamma} such that, for every open subgroup U of ...
Jha, Somnath +2 more
core +3 more sources
Extensions of group retractions
International Journal of Mathematics and Mathematical Sciences, 1980 In this paper a condition, which is necessary and sufficient, is determined when a retraction of a subgroup H of a torsion-free group G can be extended to a retraction of G.
Richard D. Byrd +3 more
doaj +1 more source
A Berger-type theorem for metric connections with skew-symmetric torsion [PDF]
, 2012 We prove a Berger-type theorem which asserts that if the orthogonal subgroup generated by the torsion tensor (pulled back to a point by parallel transport) of a metric connection with skew-symmetric torsion is not transitive on the sphere, then the space
Agricola +16 more
core +2 more sources
Torsion in the magnitude homology of graphs [PDF]
Journal of Homotopy and Related Structures, 2019 Magnitude homology is a bigraded homology theory for finite graphs defined by Hepworth and Willerton, categorifying the power series invariant known as magnitude which was introduced by Leinster.
R. Sazdanovic, Victor Summers
semanticscholar +1 more source
Residual torsion-free nilpotence, biorderability and pretzel knots [PDF]
Algebraic & Geometric Topology, 2020 The residual torsion-free nilpotence of the commutator subgroup of a knot group has played a key role in studying the bi-orderability of knot groups. A technique developed by Mayland provides a sufficient condition for the commutator subgroup of a knot ...
John H. Johnson
semanticscholar +1 more source
A Note on the Square Subgroups of Decomposable Torsion-Free Abelian Groups of Rank Three
Annales Mathematicae Silesianae, 2018 A hypothesis stated in [16] is confirmed for the case of associative rings. The answers to some questions posed in the mentioned paper are also given. The square subgroup of a completely decomposable torsion-free abelian group is described (in both cases
Woronowicz Mateusz
doaj +1 more source
Asian Journal of Urology, 2022 Objective: Male paediatric patients presenting with abdominal and/or testicular pain are common in the emergency department. As a time-sensitive diagnosis, the importance of early recognition, referral, and definitive management is critical.
Ernest M. Cheng +3 more
doaj +1 more source
On a conjecture for $\ell$-torsion in class groups of number fields: from the perspective of moments. [PDF]
, 2019 It is conjectured that within the class group of any number field, for every integer $\ell \geq 1$, the $\ell$-torsion subgroup is very small (in an appropriate sense, relative to the discriminant of the field).
L. Pierce +2 more
semanticscholar +1 more source
Torsion points and Galois representations on CM elliptic curves [PDF]
Pacific Journal of Mathematics, 2016 We prove several results on torsion points and Galois representations for complex multiplication (CM) elliptic curves over a number field containing the CM field.
Abbey Bourdon, P. L. Clark
semanticscholar +1 more source