Results 11 to 20 of about 51,103 (185)

Existence of weak positive solutions to a nonlinear PDE system around a triple phase boundary, coupling domain and boundary variables

open access: yesJournal of Mathematical Analysis and Applications, 2011
The authors show the existence of a positive, bounded weak solution for a system of partial differential equations having a physical origin. The specific character of this system is the coupling of a variable satisfying a partial differential equation in the domain with a variable satisfying a differential equation on the boundary.
Al-arydah, Moʼtassem, Novruzi, Arian
openaire   +1 more source

On explosive solutions for a class of quasi-linear elliptic equations [PDF]

open access: yes, 2012
We study existence, uniqueness, multiplicity and symmetry of large solutions for a class of quasi-linear elliptic equations. Furthermore, we characterize the boundary blow-up rate of solutions, including the case where the contribution of boundary ...
Gladiali, Francesca, Squassina, Marco
core   +1 more source

The Helically-Reduced Wave Equation as a Symmetric-Positive System [PDF]

open access: yes, 2003
Motivated by the partial differential equations of mixed type that arise in the reduction of the Einstein equations by a helical Killing vector field, we consider a boundary value problem for the helically-reduced wave equation with an arbitrary source ...
Torre, C. G.
core   +4 more sources

Convergent finite difference methods for one-dimensional fully nonlinear second order partial differential equations [PDF]

open access: yes, 2013
This paper develops a new framework for designing and analyzing convergent finite difference methods for approximating both classical and viscosity solutions of second order fully nonlinear partial differential equations (PDEs) in 1-D.
Feng, Xiaobing   +2 more
core   +1 more source

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

Comparative Assessment of Nonlocal Continuum Solvent Models Exhibiting Overscreening

open access: yesComputational and Mathematical Biophysics, 2017
Nonlocal continua have been proposed to offer a more realistic model for the electrostatic response of solutions such as the electrolyte solvents prominent in biology and electrochemistry. In this work, we review three nonlocal models based on the Landau-
Ren Baihua, Bardhan Jaydeep P.
doaj   +1 more source

The Cauchy problem for the Pavlov equation [PDF]

open access: yes, 2014
Commutation of multidimensional vector fields leads to integrable nonlinear dispersionless PDEs arising in various problems of mathematical physics and intensively studied in the recent literature.
Grinevich, P. G., Santini, P. M., Wu, D.
core   +1 more source

Boundary regularity of stochastic PDEs

open access: yes, 2018
The boundary behaviour of solutions of stochastic PDEs with Dirichlet boundary conditions can be surprisingly - and in a sense, arbitrarily - bad: as shown by Krylov, for any $\alpha>0$ one can find a simple $1$-dimensional constant coefficient linear ...
Gerencsér, Máté
core   +1 more source

Conditional symmetries and Riemann invariants for inhomogeneous hydrodynamic-type systems [PDF]

open access: yes, 2010
A new approach to the solution of quasilinear nonelliptic first-order systems of inhomogeneous PDEs in many dimensions is presented. It is based on a version of the conditional symmetry and Riemann invariant methods.
A M Grundland   +17 more
core   +2 more sources

Fourier Transform on the Homogeneous Space of 3D Positions and Orientations for Exact Solutions to Linear Parabolic and (Hypo-)Elliptic PDEs

open access: yes, 2018
Fokker-Planck PDEs (incl. diffusions) for stable L vy processes (incl. Wiener processes) on the joint space of positions and orientations play a major role in mechanics, robotics, image analysis, directional statistics and probability theory. Exact analytic designs and solutions are known in the 2D case, where they have been obtained using Fourier ...
Duits, Remco   +2 more
openaire   +2 more sources

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