Results 1 to 10 of about 20,766 (186)
Fractal and Fractional, 2023 In this study, local fuzzy fractional partial differential equations (LFFPDEs) are considered using a hybrid local fuzzy fractional approach. Fractal model behavior can be represented using fuzzy partial differential equations (PDEs) with local ...
Mawia Osman +6 more
doaj +1 more source
Complexity, 2020 The role of integer and noninteger order partial differential equations (PDE) is essential in applied sciences and engineering. Exact solutions of these equations are sometimes difficult to find.
Hijaz Ahmad +4 more
doaj +1 more source
Estimation of vector fields in unconstrained and inequality constrained variational problems for segmentation and registration [PDF]
, 2008 Vector fields arise in many problems of computer vision, particularly in non-rigid registration. In this paper, we develop coupled partial differential equations (PDEs) to estimate vector fields that define the deformation between objects, and the ...
Slabaugh, Greg, Ünal, Gözde
core +1 more source
A Variational Stereo Method for the Three-Dimensional Reconstruction of Ocean Waves [PDF]
, 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
Finite element methods for surface PDEs [PDF]
, 2013 In this article we consider finite element methods for approximating the solution of partial differential equations on surfaces. We focus on surface finite elements on triangulated surfaces, implicit surface methods using level set descriptions of the ...
Aragón +21 more
core +1 more source
PDEs with Compressed Solutions [PDF]
, 2014 Sparsity plays a central role in recent developments in signal processing, linear algebra, statistics, optimization, and other fields. In these developments, sparsity is promoted through the addition of an $L^1$ norm (or related quantity) as a constraint
Caflisch, Russel E. +3 more
core +3 more sources
A class of second-order geometric quasilinear hyperbolic PDEs and their application in imaging science [PDF]
, 2019 In this paper, we study damped second-order dynamics, which are quasilinear hyperbolic partial differential equations (PDEs). This is inspired by the recent development of second-order damping systems for accelerating energy decay of gradient flows.
Dong, Guozhi +2 more
core +3 more sources
On the multi-symplectic structure of the Serre-Green-Naghdi equations [PDF]
, 2015 In this short note, we present a multi-symplectic structure of the Serre-Green-Naghdi (SGN) equations modelling nonlinear long surface waves in shallow water. This multi-symplectic structure allow the use of efficient finite difference or pseudo-spectral
Chhay, Marx +2 more
core +5 more sources
Twisted symmetries of differential equations [PDF]
, 2009 We review the basic ideas lying at the foundation of the recently developed theory of twisted symmetries of differential equations, and some of its ...
Gaeta, Giuseppe
core +1 more source
Variational Multiscale Stabilization and the Exponential Decay of Fine-scale Correctors [PDF]
, 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