Results 1 to 10 of about 1,268,119 (187)

Non-Commutative Worlds and Classical Constraints [PDF]

open access: yesEntropy, 2018
This paper reviews results about discrete physics and non-commutative worlds and explores further the structure and consequences of constraints linking classical calculus and discrete calculus formulated via commutators.
Louis H. Kauffman
doaj   +6 more sources

Supersymmetric minisuperspace models in self-dual loop quantum cosmology

open access: yesJournal of High Energy Physics, 2021
In this paper, we study a class of symmetry reduced models of N $$ \mathcal{N} $$ = 1 super- gravity using self-dual variables. It is based on a particular Ansatz for the gravitino field as proposed by D’Eath et al. We show that the essential part of the
K. Eder, H. Sahlmann
doaj   +1 more source

Gauge-Invariant Lagrangian Formulations for Mixed-Symmetry Higher-Spin Bosonic Fields in AdS Spaces

open access: yesUniverse, 2023
We deduce a non-linear commutator higher-spin (HS) symmetry algebra which encodes unitary irreducible representations of the AdS group—subject to a Young tableaux Y(s1,…,sk) with k≥2 rows—in a d-dimensional anti-de Sitter space. Auxiliary representations
Alexander Alexandrovich Reshetnyak   +1 more
doaj   +1 more source

Manifestly causal in-in perturbation theory about the interacting vacuum

open access: yesJournal of High Energy Physics, 2021
In-In perturbation theory is a vital tool for cosmology and nonequilibrium physics. Here, we reconcile an apparent conflict between two of its important aspects with particular relevance to De Sitter/inflationary contexts: (i) the need to slightly deform
Matthew Baumgart, Raman Sundrum
doaj   +1 more source

Turán and Ramsey problems for alternating multilinear maps

open access: yesDiscrete Analysis, 2023
Turán and Ramsey problems for alternating multilinear maps, Discrete Analysis 2023:12, 22 pp. Ramsey's theorem (in its finite version) states that for every positive integer $k$ there exists a positive integer $n$ such that every graph with $n$ vertices
Youming Qiao
doaj   +1 more source

Manifestly T-dual formulation of AdS space

open access: yesJournal of High Energy Physics, 2017
We present a manifestly T-dual formulation of curved spaces such as an AdS space. For group manifolds related by the orthogonal vielbein fields the three form H = dB in the doubled space is universal at least locally. We construct an affine nondegenerate
Machiko Hatsuda   +2 more
doaj   +1 more source

A note on rings with certain variables identities

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1989
It is proved that certain rings satisfying generalized-commutator constraints of the form [xm,yn,yn,...,yn]=0 with m and n depending on x and y, must have nil commutator ideal.
Hazar Abu-Khuzam
doaj   +1 more source

Optical Solitons, Optimal Systems and Conserved Quantities of the Schrödinger Equation with Spatio-Temporal and Inter-Modal Dispersions

open access: yesFractal and Fractional
In this study, we present a unified symmetry-conservation solution analysis of a well-posed resonant nonlinear Schrödinger (NLS)-type equation incorporating spatio-temporal dispersion and inter-modal dispersion.
Funda Turk
doaj   +1 more source

DISPEL-GNN: De-Illusion via Spectral Stability and Perturbation Bound-Enforced Learning for Community Detection with Risk-Aware Dynamic Attention in Graph Neural Networks

open access: yesMathematics
Community detection in graphs can be viewed as the estimation of a partition map that remains stable under admissible perturbations of graph topology and node attributes.
Daozheng Qu   +2 more
doaj   +1 more source
Some of the next articles are maybe not open access.

Current-Commutator Constraints on Three- and Four-Point Functions

Physical Review Letters, 1966
John M Cornwall
exaly  

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