Results 1 to 10 of about 25,964 (155)

Cycling chaos: its creation, persistence and loss of stability in a model of nonlinear magnetoconvection [PDF]

open access: yes, 1998
We examine a model system where attractors may consist of a heteroclinic cycle between chaotic sets; this ‘cycling chaos’ manifests itself as trajectories that spend increasingly long periods lingering near chaotic invariant sets interspersed with short ...
A.M. Rucklidge   +23 more
core   +3 more sources

A Variational Stereo Method for the Three-Dimensional Reconstruction of Ocean Waves [PDF]

open access: yes, 2011
We develop a novel remote sensing technique for the observation of waves on the ocean surface. Our method infers the 3-D waveform and radiance of oceanic sea states via a variational stereo imagery formulation.
Benetazzo, Alvise   +3 more
core   +3 more sources

A High-Order Kernel Method for Diffusion and Reaction-Diffusion Equations on Surfaces [PDF]

open access: yes, 2012
In this paper we present a high-order kernel method for numerically solving diffusion and reaction-diffusion partial differential equations (PDEs) on smooth, closed surfaces embedded in $\mathbb{R}^d$. For two-dimensional surfaces embedded in $\mathbb{R}^
Fuselier, Edward J., Wright, Grady B.
core   +5 more sources

Modified scattering for the cubic Schr{\"o}dinger equation on product spaces: the nonresonant case [PDF]

open access: yes, 2015
We consider the cubic nonlinear Schr{\"o}dinger equation on the spatial domain $\mathbb{R}\times \mathbb{T}^d$, and we perturb it with a convolution potential.
Grébert, Benoît   +2 more
core   +4 more sources

Semi-Lagrangian discontinuous Galerkin schemes for some first and second-order partial differential equations [PDF]

open access: yes, 2015
Explicit, unconditionally stable, high-order schemes for the approximation of some first- andsecond-order linear, time-dependent partial differential equations (PDEs) are proposed.The schemes are based on a weak formulation of a semi-Lagrangian scheme ...
Bokanowski, Olivier   +1 more
core   +4 more sources

Quadratic BSDEs with Singular Generators and Unbounded Terminal Conditions: Theory and Applications

open access: yesMathematics
We investigate a class of quadratic backward stochastic differential equations (BSDEs) with generators that are singular in y. First, we establish the existence of solutions and a comparison theorem, thereby extending the existing results in the ...
Wenbo Wang, Guangyan Jia
doaj   +1 more source

Efficient Gluing of Numerical Continuation and a Multiple Solution Method for Elliptic PDEs

open access: yes, 2014
Numerical continuation calculations for ordinary differential equations (ODEs) are, by now, an established tool for bifurcation analysis in dynamical systems theory as well as across almost all natural and engineering sciences. Although several excellent
Kuehn, Christian
core   +1 more source

Treatment of complex interfaces for Maxwell's equations with continuous coefficients using the correction function method

open access: yes, 2020
We propose a high-order FDTD scheme based on the correction function method (CFM) to treat interfaces with complex geometry without increasing the complexity of the numerical approach for constant coefficients.
Law, Yann-Meing   +2 more
core   +1 more source

Variational Multiscale Stabilization and the Exponential Decay of Fine-scale Correctors [PDF]

open access: yes, 2015
This paper addresses the variational multiscale stabilization of standard finite element methods for linear partial differential equations that exhibit multiscale features. The stabilization is of Petrov-Galerkin type with a standard finite element trial
A. Abdulle   +41 more
core   +2 more sources

Thermal and mass transfer prediction of Casson based nanofluid flow over an exponential stretching sheet using a Multi-Task Neural Network approach

open access: yesInternational Journal of Thermofluids
The precise forecasting of thermal and mass transportation properties in a non-Newtonian nanofluid circulation is vital for the design and development of efficient thermal management systems, especially in micro-scale electronic devices, polymer ...
S Raghu   +5 more
doaj   +1 more source

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