Results 121 to 130 of about 32,373 (309)

Optimal control on a metric graph for a damped linear fractional hyperbolic problem

open access: yesResults in Control and Optimization
The optimal control of fractional PDEs has been extensively studied in standard domains, but the existence and uniqueness of optimal controls in metric graphs, particularly for hyperbolic equations, remain less explored.
Pasquini Fotsing Soh
doaj   +1 more source

Hyperbolic approximation of the fourier transformed vlasov equation

open access: yesESAIM: Proceedings and Surveys, 2014
We construct an hyperbolic approximation of the Fourier transformed Vlasov equation in which the dependency on the spectral-velocity variable is removed. The model is constructed from the Vlasov equation after a Fourier transformation
Pham Nhung   +2 more
doaj   +1 more source

Asynchronous automaticity and products of hyperbolic spaces [PDF]

open access: yes
The main result of this thesis is a general procedure for constructing an asynchronous automatic structure for some finitely generated groups quasi-isometric to products of non-elementary hyperbolic spaces.
Beck, Jennifer   +1 more
core  

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Modelling of Nonuniform RC Structures for Computer Aided Design

open access: yesActive and Passive Electronic Components, 1994
A simple model for nonuniform distributed RC structures is presented. The model consists of three passive elements only and can be used for modelling nonuniform distributed RC structures involving exponential, hyperbolic sine squared, hyperbolic cosine ...
Muhammad Taher Abuelma'atti
doaj   +1 more source

Directional Flow of Confined Polaritons in CrSBr

open access: yesAdvanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak   +10 more
wiley   +1 more source

Hyperbolic graph neural networks

open access: yes, 2019
Learning from graph-structured data is an important task in machine learning and artificial intelligence, for which Graph Neural Networks (GNNs) have shown great promise.
Nickel, Maximilian   +2 more
core  

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

open access: yesAdvanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam   +6 more
wiley   +1 more source

Semigroup estimates and fast-slow dynamics in parabolic-hyperbolic systems

open access: yesAdvances in Nonlinear Analysis, 2018
We present a general procedure to describe slow dynamics in parabolic-hyperbolic systems, under suitable assumptions on the terms appearing in the equations. In particular, our strategy relies in semigroup estimates for the evolution system associated to
Strani Marta
doaj   +1 more source

On stability for symmetric hyperbolic systems, II

open access: yesJournal of Differential Equations, 1981
In a very wide spectrum of applications, the problem of stability plays a central role. There is a vast literature available in the field, but still the problem is solved only in special cases. The incompleteness of the literature is especially noticeable when the governing equations are partial differential equations.
openaire   +2 more sources

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