Results 71 to 80 of about 140,027 (183)
A Krull-Schmdit type theorem for coherent sheaves
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014 Let X be projective variety over an algebraically closed field k and G be a finite group with g.c.d.(char(k), |G|) = 1. We prove that any representations of G on a coherent sheaf, ρ : G → End(ℰ), has a natural decomposition ℰ ≃ ⊕ V ⊗k ℱV, where G acts ...
Argáez A. S.
doaj +1 more source
Three point interaction of Dirac fermions with higher spin particles and discrete symmetries
Journal of High Energy PhysicsWe constructed all possible kinematically allowed three-point interactions of two massless Dirac spinors with massive higher-spin bosons. In any D spacetime, the interactions have been constructed using the projections of the higher spin irreducible ...
Kushal Chakraborty +3 more
doaj +1 more source
The asymptotically-free gauge theories
Journal of High Energy PhysicsWe show how to classify the asymptotically-free gauge theories in four spacetime dimensions, focussing here on the case of purely fermionic matter. The classification depends on the fact (which we prove) that the dimension and Dynkin index of irreducible
Ben Gripaios, Khoi Le Nguyen Nguyen
doaj +1 more source
Mixed-symmetry fields in de Sitter space: a group theoretical glance
Journal of High Energy Physics, 2017 We derive the characters of all unitary irreducible representations of the (d+1)-dimensional de Sitter spacetime isometry algebra so 1 , d + 1 $$ \mathfrak{so}\left(1,\kern0.5em d+1\right) $$ , and propose a dictionary between those representations and ...
Thomas Basile +2 more
doaj +1 more source
On tensor squares of irreducible representations of almost simple groups. I
Моделирование и анализ информационных систем, 2011 Almost simple SM_m-groups are considered. A group G is called a SM_m-group if the tensor square of any irreducible representation is decomposed into the sum of its irreducible representations with multiplicities not greater than m.
S. V. Polyakov
doaj
Karpatsʹkì Matematičnì Publìkacìï, 2014 We consider some conditions for imprimitivity of irreducible representations of a metebelian group $G$ of finite rank over a field $k$. We shoved that in the case where $char\; k = p > 0$ these conditions strongly depend on existence of infinite $p ...
A.V. Tushev
doaj +1 more source
Irreducible representations of Baumslag–Solitar groups [PDF]
Journal of Group Theory, 2012 Abstract.In this paper, we classify the finite-dimensional irreducible linear representations of ...
openaire +2 more sources
Lifting irreducible Galois representations
, 2018 We study irreducible mod p representations, valued in general reductive groups, of the Galois group of a number field. When the number field is totally real, we show that odd representations satisfying local ramification hypotheses and a certain multiplicity-free condition on the adjoint representation admit geometric lifts.
Fakhruddin, Najmuddin +2 more
openaire +2 more sources
Minimal eclectic flavor group Q 8 ⋊ S 3 and neutrino mixing
Journal of High Energy PhysicsWe perform a comprehensive analysis of the minimal eclectic flavor group Q 8 ⋊ S 3 which is isomorphic to GL(2, 3), and all its irreducible representations are induced from the irreducible representations of Q 8 and S 3.
Cai-Chang Li, Jun-Nan Lu, Gui-Jun Ding
doaj +1 more source
Induced Representation Method in the Theory of Electron Structure and Superconductivity
Advances in Mathematical Physics, 2019 It is shown that the application of theorems of induced representations method, namely, Frobenius reciprocity theorem, transitivity of induction theorem, and Mackey theorem on symmetrized squares, makes simplifying standard techniques in the theory of ...
V. G. Yarzhemsky
doaj +1 more source