Results 81 to 90 of about 2,108,594 (166)
Constructions of complex hadamard matrices via tiling abelian groups [PDF]
, 2007 Applications in quantum information theory and quantum tomography have raised current interest in complex Hadamard matrices. In this note we investigate the connection between tiling of Abelian groups and constructions of complex Hadamard matrices ...
Matolcsi, Máté +2 more
core +1 more source
Fourier Mukai transforms of line bundles on derived equivalent abelian varieties
Le Matematiche, 2008 We study the Fourier-Mukai functor D(Y) → D(X) induced by the universal family on a fine moduli space Y for simple semihomogeneous vector bundles on an abelian variety X.
Martin G. Gulbrandsen
doaj
Flat principal bundles over an abelian variety
, 2004 We prove that a principal G-bundle EG over a complex abelian variety A, where G is a complex reductive algebraic group, admits a flat holomorphic connection if and only if EG is isomorphic to all the translations of it by the group structure of ...
Biswas, Indranil
core +1 more source
Detecting linear dependence on a simple abelian variety [PDF]
, 2010 Let A be a geometrically simple abelian variety over a number field k, let X be a subgroup of A(k) and let P ε A(k) be a rational point.
Jossen, Peter 1980-, Jossen, Peter
core +1 more source
The Hodge group of an abelian variety
, 1988 Let A A be a simple abelian variety of odd dimension, defined over C {\mathbf {C}} . If the Hodge classes on A A are intersections of divisors, then the semisimple part of ...
V. Kumar Murty
core +1 more source
Difference equations: From Berry connections to the Coulomb branch
SciPost PhysicsIn recent work, we demonstrated that a spectral variety for the Berry connection of a 2d $\mathcal{N}=(2,2)$ GLSM with Kähler vacuum moduli space $X$ and Abelian flavour symmetry is the support of a sheaf induced by a certain action on the equivariant ...
Andrea E. V. Ferrari, Daniel Zhang
doaj +1 more source
Mass generation in Yang-Mills theories *
EPJ Web of Conferences, 2017 In this talk we review recent progress on our understanding of the nonperturbative phenomenon of mass generation in non-Abelian gauge theories, and the way it manifests itself at the level of the gluon propagator, thus establishing a close contact with a
Papavassiliou J. +3 more
doaj +1 more source
Magnetic helicity, magnetic monopoles, and Higgs winding
Journal of High Energy PhysicsChanges in magnetic helicity are often discussed across a variety of fields, from condensed matter physics to early universe cosmology. It is frequently stated that the helicity change is given by the integral of the gauge field strength tensor and its ...
Hajime Fukuda +4 more
doaj +1 more source
GEOMETRICALLY SIMPLE QUASI-ABELIAN VARIETIES
We define the geometric simpleness for toroidal groups. We give an example ofquasi-abelian variety which is geometrically simple, but not simple. We show that any quasi-abelian variety is isogenous to a product of geometrically simple quasi-abelian ...
アベ, ユキタカ +2 more
core +1 more source
Completely (iso-)split scale-invariant Coulomb branch geometries are isotrivial
Journal of High Energy PhysicsWe show that scale-invariant special Kähler geometries whose generic r dim ℂ abelian variety fiber is isomorphic (completely split) or isogenous (completely iso-split) as a complex torus to the product of r one-dimensional complex tori have constant τ ij
Philip C. Argyres +3 more
doaj +1 more source