Results 11 to 20 of about 9,067 (308)

Hidden isometry of “T-duality without isometry”

open access: yesJournal of High Energy Physics, 2017
We study the T-dualisability criteria of Chatzistavrakidis, Deser and Jonke [3] who recently used Lie algebroid gauge theories to obtain sigma models exhibiting a “Tduality without isometry”.
Peter Bouwknegt   +3 more
doaj   +9 more sources

Isometry pursuit

open access: yesCoRR
Isometry pursuit is a convex algorithm for identifying orthonormal column-submatrices of wide matrices. It consists of a novel normalization method followed by multitask basis pursuit. Applied to Jacobians of putative coordinate functions, it helps identity isometric embeddings from within interpretable dictionaries.
Samson J. Koelle, Marina Meila
openaire   +3 more sources

Universal construction of decoders from encoding black boxes [PDF]

open access: yesQuantum, 2023
Isometry operations encode the quantum information of the input system to a larger output system, while the corresponding decoding operation would be an inverse operation of the encoding isometry operation. Given an encoding operation as a black box from
Satoshi Yoshida   +2 more
doaj   +1 more source

Extension of isometries in real Hilbert spaces

open access: yesOpen Mathematics, 2022
The main purpose of this article is to develop a theory that extends the domain of any local isometry to the whole space containing the domain, where a local isometry is an isometry between two proper subsets.
Jung Soon-Mo
doaj   +1 more source

Isometry groups of six-dimensional filiform nilmanifolds [PDF]

open access: yesInternational Journal of Group Theory, 2023
In this paper, we classify up to isometry the connected and simply connected Riemannian nilmanifolds on six-dimensional filiform Lie groups and we compute the corresponding isometry groups.
Agota Figula, Sameer Annon Abbas
doaj   +1 more source

On Some Linear Operators Preserving Disjoint Support Property [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2021
The aim of this work is to characterize all bounded linear operators $T:\lpi\rightarrow\lpi$ which preserve disjoint support property. We show that the constant coefficients of all isometries on $\lpi$ are in the class of such operators, where $2\neq p ...
Noha Eftekhari, Ali Bayati Eshkaftaki
doaj   +1 more source

Improvement of Furuta’s Inequality with Applications to Numerical Radius

open access: yesMathematics, 2022
In diverse branches of mathematics, several inequalities have been studied and applied. In this article, we improve Furuta’s inequality. Subsequently, we apply this improvement to obtain new radius inequalities that not been reported in the current ...
Mohammad W. Alomari   +5 more
doaj   +1 more source

ISOMETRIES AND DISCRETE ISOMETRY SUBGROUPS OF HYPERBOLIC SPACES [PDF]

open access: yesGlasgow Mathematical Journal, 2009
AbstractLet n be the n-dimensional hyperbolic space with n ≥ 2. Suppose that G is a discrete, sense-preserving subgroup of Isomn, the isometry group of n. Let p be the projection map from n to the quotient space M = n/G. The first goal of this paper is to prove that for any a ∈ ∂n (the sphere at infinity of n), there exists an open neighbourhood U of a
Fu, Xi, Wang, Xiantao
openaire   +2 more sources

A Note on Killing Calculus on Riemannian Manifolds

open access: yesMathematics, 2021
In this article, it has been observed that a unit Killing vector field ξ on an n-dimensional Riemannian manifold (M,g), influences its algebra of smooth functions C∞(M).
Sharief Deshmukh   +3 more
doaj   +1 more source

VARIASI POLA SIMETRI ROTASI 90 DERAJAT DARI SIMULASI SISTEM DINAMIK DENGAN TIGA TES KONVERGENSI

open access: yesJurnal Lebesgue, 2023
This article reviews the  symmetry pattern which has  rotational symmetry and translational symmetry along the -axis and -axis. The  symmetry pattern is generated through the implementation of Matlab application using discrete dynamical system ...
Kintan Febri Cania   +2 more
doaj   +1 more source

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