Results 1 to 10 of about 365 (115)

On Best Erasure Wiretap Codes: Equivocation Matrices and Design Principles [PDF]

Entropy
Physical-layer security can aid in establishing secure telecommunication networks including cellular, Internet of Things, and telemetry networks, among others. Channel sounding techniques and/or telemetry systems for reporting channel conditions, coupled
Willie K. Harrison, Truman Welling, Andrew Swain, Morteza Shoushtari   +3 more
doaj   +2 more sources

On a maximal subgroup of the Symplectic group Sp(4,4) [PDF]

AUT Journal of Mathematics and Computing, 2023
This paper is dealing with a split extension group of the form 26 :(3× A5), which is the largest maximal subgroup of the Symplectic group Sp(4, 4). We refer to this extension by G.
Ayoub Basheer
doaj   +1 more source

A monogamy-of-entanglement game for subspace coset states [PDF]

Quantum, 2022
We establish a strong monogamy-of-entanglement property for subspace coset states, which are uniform superpositions of vectors in a linear subspace of $\mathbb{F}_2^n$ to which has been applied a quantum one-time pad.
Eric Culf, Thomas Vidick
doaj   +1 more source

Double coset Markov chains

Forum of Mathematics, Sigma, 2023
Let G be a finite group. Let $H, K$ be subgroups of G and $H \backslash G / K$ the double coset space. If Q is a probability on G which is constant on conjugacy classes ( $Q(s^{-1} t s) = Q(t)$ ), then the random walk driven by Q on G ...
Persi Diaconis, Arun Ram, Mackenzie Simper   +2 more
doaj   +1 more source

On a Maximal Subgroup of the Affine General Linear Group of GL(6, 2) [PDF]

Advances in Group Theory and Applications, 2021
The affine general linear group 2^5:GL(5, 2) of GL(6, 2) has 6 conjugacy classes of maximal subgroups. The largest maximal subgroup is a group of the form 2^(1+8)_+ : GL(4, 2). In this paper we firstly determine the conjugacy classes of G using the coset
Ayoub B.M. Basheer, Jamshid Moori
doaj   +1 more source

Dynamically restoring conformal invariance in (integrable) $\sigma$-models

SciPost Physics, 2023
Integrable $\lambda$-deformed $\sigma$-models are characterized by an underlying current algebra/coset model CFT deformed, at the infinitesimal level, by current/parafermion bilinears.
Rigers Aliaj, Konstantinos Sfetsos, Konstantinos Siampos
doaj   +1 more source

The character table of a subgroup $2^7{:}G_2 (2)$ of $Sp_8(2)$ [PDF]

AUT Journal of Mathematics and Computing
In this paper, the ordinary character table of a finite extension of structure $\overline{G}=2^7{:}G_2(2)$ is computed via the Fischer-Clifford matrices technique.
Abraham Prins, Jacinta Sikolia, Lucy Chikamai   +2 more
doaj   +1 more source

On an imprimitive maximal subgroup of $SU_7(2)$ [PDF]

AUT Journal of Mathematics and Computing
The special unitary group $SU_{n}(q)$ has a maximal imprimitive subgroup with the structure $(q+1)^{n-1}{:}S_{n}$. The exceptions when the subgroup is not maximal are $SU_{3}(5)$, $SU_{4}(3)$ and $SU_{6}(2)$.
David Musyoka, Abraham Prins, Lydia Njuguna, Lucy Chikamai   +3 more
doaj   +1 more source

Comments on the symmetry of AdS6 solutions in string/M-theory and Killing spinor equations

Physics Letters B, 2016
It was recently pointed out in [1] that AdS6 solutions in IIB theory enjoy an extended symmetry structure and the consistent truncation to D=4 internal space leads to a nonlinear sigma model with target SL(3,R)/SO(2,1).
Hyojoong Kim, Nakwoo Kim
doaj   +1 more source

Twisted strings in three-dimensional black holes

European Physical Journal C: Particles and Fields, 2022
We revisit the classical dynamics of fundamental strings in BTZ black holes with NSNS flux. We analyze probe strings in the black hole background and determine their classical energy using a Nambu–Goto action.
Sujay K. Ashok, Jan Troost
doaj   +1 more source