Results 81 to 90 of about 63,478 (260)

Extremal Hermitian metrics on Riemann surfaces with singularities [PDF]

open access: yesDuke Mathematical Journal, 2000
In this paper the authors discuss the extremal Hermitian metrics with finite energy and area on Riemannian surfaces with conical singularities. After establishing the preliminary technical results they prove the following main theorem: Let \(M\) be a compact Riemann surface, let \(g\) be an extremal Hermitian metric with finite energy and area on \(M ...
Wang, Guofang, Zhu, Xiaohua
openaire   +2 more sources

Integration of Cholesterol Oxidase‐Based Biosensors on a Smart Contact Lens for Wireless Cholesterol Monitoring from Tears

open access: yesAdvanced Intelligent Systems, EarlyView.
The combination of a parity‐time symmetry wireless technology with a cholesterol sensor integrated into a smart contact lens enables high‐sensitivity cholesterol sensing at low concentration. Cholesterol plays a critical role in physiological functions, but elevated levels increase the risk of cardiovascular disease.
Yang Cui   +4 more
wiley   +1 more source

The differential geometry of almost Hermitian almost contact metric submersions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
Three types of Riemannian submersions whose total space is an almost Hermitian almost contact metric manifold are studied. The study is focused on fundamental properties and the transference of structures.
T. Tshikuna-Matamba
doaj   +1 more source

Perfect Hermitian rank-metric codes

open access: hybridThe Art of Discrete and Applied Mathematics
This study investigates Hermitian rank-metric codes, a special class of rank-metric codes, focusing on perfect codes and on the analysis of their covering properties. Firstly, we establish bounds on the size of spheres in the space of Hermitian matrices and, as a consequence, we show that non-trivial perfect codes do not exist in the Hermitian case. We
Usman Mushrraf
openalex   +3 more sources

Non-Hermitian spin chains with inhomogeneous coupling [PDF]

open access: yes, 2010
An open U_q(sl_2)-invariant spin chain of spin S and length N with inhomogeneous coupling is investigated as an example of a non-Hermitian (quasi-Hermitian) model.
Bytsko, Andrei G.
core  

Quasi-Hermitian supersymmetric extensions of a non-Hermitian oscillator Hamiltonian and of its generalizations

open access: yes, 2008
A harmonic oscillator Hamiltonian augmented by a non-Hermitian \pt-symmetric part and its su(1,1) generalizations, for which a family of positive-definite metric operators was recently constructed, are re-examined in a supersymmetric context.
Bagchi B   +10 more
core   +1 more source

Signatures of the Correlated‐Hopping Interaction in Non‐Linear Transport Through a Quantum Dot

open access: yesAnnalen der Physik, EarlyView.
Non‐linear thermoelectric transport through a quantum dot is studied, in order to elucidate the signatures of so‐called correlated hopping. The line shapes of the differential conductance and the Seebeck coefficient as functions of gate voltage are clear indicators of this important interaction term.
Ulrich Eckern, Karol I. Wysokiński
wiley   +1 more source

On six-dimensional Vaisman — Gray submanifolds of the octave algebra

open access: yesДифференциальная геометрия многообразий фигур, 2019
The W1 + W4 class of almost Hermitian manifolds (in accordance with the Gray — Hervella classification) is usually named as the class of Vaisman — Gray manifolds.
M. Banaru
doaj   +1 more source

On the evolution of a Hermitian metric by its Chern-Ricci form

open access: yes, 2014
We consider the evolution of a Hermitian metric on a compact complex manifold by its Chern-Ricci form. This is an evolution equation first studied by M. Gill, and coincides with the Kahler-Ricci flow if the initial metric is Kahler.
Tosatti, Valentino, Weinkove, Ben
core   +1 more source

Statistical Link Between Bell Nonlocality and Uncertainty Relations in Quantum Mechanics

open access: yesAnnalen der Physik, EarlyView.
Bell nonlocality and uncertainty principle are two distinguished features in quantum mechanics from classical physics. In this work, it is showed the interplay between these two quantum properties. The upper bound of nonlocal correlation strength is determined by accumulation of all local measurement uncertainty, which means that more Bell nonlocality ...
Li‐Yi Hsu
wiley   +1 more source

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