Results 21 to 30 of about 58,620 (315)
Combinatorial invariant theory of projective reflection groups [PDF]
Discrete Mathematics & Theoretical Computer Science, 2009 We introduce the class of projective reflection groups which includes all complex reflection groups. We show that several aspects involving the combinatorics and the representation theory of complex reflection groups find a natural description in this ...
Fabrizio Caselli
doaj +1 more source
On Einstein–Born–Infeld conformally invariant theory
European Physical Journal C: Particles and Fields, 2023 A new Weyl Born Infeld model is presented. It takes as basis the formalism for the mathematical description of conformal gravity based on the local twistor geometry from Merkulov (Class Quantum Gravity 1:349–354, 1984).
Diego Julio Cirilo-Lombardo
doaj +1 more source
Real Geometric Invariant Theory [PDF]
, 2020 23 pages; v2: sections were completely reorganised, some proofs were rewritten and several typos fixed; v3: Fixed proof of Prop. 8.3, added Cor.
Böhm, Christoph, Lafuente, Ramiro A.
openaire +2 more sources
On Orbifold Criteria for Symplectic Toric Quotients
Symmetry, Integrability and Geometry: Methods and Applications, 2013 We introduce the notion of regular symplectomorphism and graded regular symplectomorphism between singular phase spaces. Our main concern is to exhibit examples of unitary torus representations whose symplectic quotients cannot be graded regularly ...
Carla Farsi +2 more
doaj +1 more source
Codes and invariant theory [PDF]
Mathematische Nachrichten, 2004 AbstractThe main theorem in this paper is a far‐reaching generalization of Gleason's theorem on the weight enumerators of codes which applies to arbitrary‐genus weight enumerators of self‐dual codes defined over a large class of finite rings and modules. The proof of the theorem uses a categorical approach, and will be the subject of a forthcoming book.
Nebe, G., Rains, E. M., Sloane, N. J. A.
openaire +4 more sources
Gauge invariants, correlators and holography in bosonic and fermionic tensor models
Journal of High Energy Physics, 2017 Motivated by the close connection of tensor models to the SYK model, we use representation theory to construct the complete set of gauge invariant observables for bosonic and fermionic tensor models. Correlation functions of the gauge invariant operators
Robert de Mello Koch +2 more
doaj +1 more source
Generation modulo the action of a permutation group [PDF]
Discrete Mathematics & Theoretical Computer Science, 2013 Originally motivated by algebraic invariant theory, we present an algorithm to enumerate integer vectors modulo the action of a permutation group. This problem generalizes the generation of unlabeled graph up to an isomorphism.
Nicolas Borie
doaj +1 more source
Scale-invariant supergravity theory in component formulation
Physics Letters B, 2021 We formulate N=1 supergravity theory in four-dimensions with local scale invariance in semi-on-shell component formulation in four dimensions. The algebra we adopt has the generators (Pm,Mmn,Qα,S) consisting of the generators in super-Poincaré algebra ...
Hitoshi Nishino, Subhash Rajpoot
doaj +1 more source
Generalized scale invariant theories [PDF]
Physical Review D, 2014 We present the most general actions of a single scalar field and two scalar fields coupled to gravity, consistent with second order field equations in four dimensions, possessing local scale invariance. We apply two different methods to arrive at our results.
Padilla, Antonio +2 more
openaire +6 more sources
Reparameterization invariant operator basis for NRQED and HQET
Journal of High Energy Physics, 2019 We provide a self-contained discussion of how reparameterization invariance connects a rotationally-invariant heavy particle effective theory with a single heavy fermion to a Lorentz-invariant theory. Furthermore, using Hilbert-series methods, a Lorentz-
Andrew Kobach, Sridip Pal
doaj +1 more source