Results 1 to 10 of about 329 (169)

Secure Group Communications Using Twisted Group Rings

open access: yesMathematics, 2022
In this paper we introduce a Group Key Management protocol following the idea of the classical protocol that extends the well-known Diffie–Hellman key agreement to a group of users. The protocol is defined in a non-commutative setting, more precisely, in
María Dolores Gómez Olvera   +2 more
doaj   +1 more source

Aspects of Differential Calculus Related to Infinite-Dimensional Vector Bundles and Poisson Vector Spaces

open access: yesAxioms, 2022
We prove various results in infinite-dimensional differential calculus that relate the differentiability properties of functions and associated operator-valued functions (e.g., differentials).
Helge Glöckner
doaj   +1 more source

Corrigendum to ‘Endoscopy for Hecke categories, character sheaves and representations’

open access: yesForum of Mathematics, Pi, 2021
We fix an error on a $3$ -cocycle in the original version of the paper ‘Endoscopy for Hecke categories, character sheaves and representations’. We give the corrected statements of the main results.
George Lusztig, Zhiwei Yun
doaj   +1 more source

Seeing the entanglement wedge

open access: yesJournal of High Energy Physics, 2021
We study the problem of revealing the entanglement wedge using simple operations. We ask what operation a semiclassical observer can do to bring the entanglement wedge into causal contact with the boundary, via backreaction.
Adam Levine   +2 more
doaj   +1 more source

Deformations of supergravity and supersymmetry anomalies

open access: yesJournal of High Energy Physics, 2021
We present a BRST analysis of supersymmetry anomalies of N $$ \mathcal{N} $$ = 1 supersymmetric quantum field theories with anomalous R symmetry. To this end, we consider the coupling of the matter theory to classical N $$ \mathcal{N} $$ = 1 new minimal ...
Markus B. Fröb   +2 more
doaj   +1 more source

Compact Global Chaotic Attractors of Discrete Control Systems

open access: yesNonautonomous Dynamical Systems, 2014
The paper is dedicated to the study of the problem of existence of compact global chaotic attractors of discrete control systems and to the description of its structure. We consider so called switched systems with discrete time xn+1 = fv(n)(xn), where v:
Cheban David
doaj   +1 more source

Charge algebra in Al(A)dS n spacetimes

open access: yesJournal of High Energy Physics, 2021
The gravitational charge algebra of generic asymptotically locally (A)dS spacetimes is derived in n dimensions. The analysis is performed in the Starobinsky/Fefferman-Graham gauge, without assuming any further boundary condition than the minimal falloffs
Adrien Fiorucci, Romain Ruzziconi
doaj   +1 more source

Random exponential attractor for second order non-autonomous stochastic lattice dynamical systems with multiplicative white noise in weighted spaces

open access: yesAdvances in Difference Equations, 2019
This paper is concerned with the random exponential attractor for second order non-autonomous stochastic lattice system with multiplicative white noise and unbounded nonlinearity.
Haijuan Su, Shengfan Zhou, Luyao Wu
doaj   +1 more source

On uniform polynomial splitting of variational nonautonomous difference equations in Banach spaces

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2022
In this paper we consider a concept of uniform polynomial splitting for a discrete cocycle over a discrete semiflow in Banach spaces. We obtain some characterizations of Datko type and also in terms of Lyapunov functions. The study is made from the point
Biriş Larisa Elena   +3 more
doaj   +1 more source

Poisson-Lie U-duality in exceptional field theory

open access: yesJournal of High Energy Physics, 2020
Poisson-Lie duality provides an algebraic extension of conventional Abelian and non-Abelian target space dualities of string theory and has seen recent applications in constructing quantum group deformations of holography.
Emanuel Malek, Daniel C. Thompson
doaj   +1 more source

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