Algebraic & definable closure in free groups [PDF]
, 2011 We study algebraic closure and its relation with definable closure in free groups and more generally in torsion-free hyperbolic groups. Given a torsion-free hyperbolic group G and a nonabelian subgroup A of G, we describe G as a constructible group from ...
Vallino, D., Ould Houcine, Abderezak
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Harmonic maps, SU (N) skyrme models and yang-mills theories [PDF]
, 2002 This thesis examines the construction of static solutions of (3+l)-dimensional SU{N) Skyrme models, usual and alternative, and pure massive SU(N) Yang-Mills theories.
Wospakrik, Hans Jacobus
core
Van Kampen’s embedding obstruction for discrete groups [PDF]
, 2002 We give a lower bound to the dimension of a contractible manifold on which a given group can act properly discontinuously. In particular, we show that the n -fold product of nonabelian free groups cannot act properly discontinuously on ℝ 2 n −1 .Peer ...
Kleiner, Bruce +2 more
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Classification of free actions on complete intersections of four quadrics [PDF]
, 2011 In this paper we classify all free actions of finite groups on Calabi-Yau complete intersection of four quadrics in ℙ 7, up to projective equivalence. We get some examples of smooth Calabi-Yau three-folds with large nonabelian fundamental groups. We also
Hua, Z
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Four-point functions of gravitons and conserved currents of CFT in momentum space: testing the nonlocal action with the TTJJ. [PDF]
Eur Phys J C Part Fields, 2023 Corianò C, Maglio MM, Tommasi R.
europepmc +1 more source
Fixed-point free pairs of homomorphisms and nonabelian Hopf-Galois structure [PDF]
, 2012 Given finite groups Γ and G of order n, regular embeddings from Γ to the holomorph of G yield Hopf-Galois structures on a Galois extension L|K of fields with Galois group Γ.
Nigel P. Byott (21821831) +1 more
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Free normal complements and the unit group of integral group rings [PDF]
, 1994 It is shown that there are only four finite groups G with the property that G has a nonabelian free normal complement in the unit group of the integral group ZG.
Eric Jespers
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Fixed-point free pairs of homomorphisms and nonabelian Hopf-Galois structure [PDF]
, 2013 Given finite groups Γ and G of order n, regular embeddings from Γ to the holomorph of G yield Hopf-Galois structures on a Galois extension L|K of fields with Galois group Γ.
Byott, Nigel P., Childs, Lindsay N.
core
The Tits alternative for generalised tetrahedron groups [PDF]
, 2005 A generalised tetrahedron group is the colimit of a triangle of groups whose vertex groups are generalised triangle groups and whose edge groups are finite cyclic.
Natalia Kopteva, James Howie
core
Simultaneous Measurements of Noncommuting Observables: Positive Transformations and Instrumental Lie Groups. [PDF]
Entropy (Basel), 2023 Jackson CS, Caves CM.
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