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Numerical Analysis of an Elliptic-Parabolic Partial Differential Equation [PDF]

open access: yes, 1968
G. Fichera [1] and other authors have investigated partial differential equations of the form [Eq. 1.1] in which the matrix (aij(x)) is required to be semidefinite. Equations of this type occur in the theory of random processes.
Franklin, Joel N., Rodemich, Eugene R.
core   +2 more sources

Study of an elliptic partial differential equation modelling the Antarctic Circumpolar Current

open access: diamondDiscrete and Continuous Dynamical Systems. Series A, 2019
We consider the ocean flow of the Antarctic Circumpolar Current. Using a recently-derived model for gyres in rotating spherical coordinates, and mapping the problem on the sphere onto the plane using the Mercator projection, we obtain a boundary-value ...
Susanna V. Haziot
openalex   +2 more sources

A partial differential equation for pseudocontact shift [PDF]

open access: yesPhysical Chemistry, Chemical Physics - PCCP, 2014
It is demonstrated that pseudocontact shift (PCS), viewed as a scalar or a tensor field in three dimensions, obeys an elliptic partial differential equation with a source term that depends on the Hessian of the unpaired electron probability density.
Charnock, G.T.P., Kuprov, Ilya
core   +3 more sources

Learning Elliptic Partial Differential Equations with Randomized Linear Algebra [PDF]

open access: yesFoundations of Computational Mathematics, 2021
Given input–output pairs of an elliptic partial differential equation (PDE) in three dimensions, we derive the first theoretically rigorous scheme for learning the associated Green’s function G .
N. Boull'e, Alex Townsend
semanticscholar   +1 more source

Study of an Elliptic Partial Differential Equation Modeling the Ocean Flow in Arctic Gyres

open access: yesJournal of Mathematical Fluid Mechanics, 2021
We study the ocean flow in Arctic gyres using a recent model for gyres derived in spherical coordinates on the rotating sphere. By projecting this model onto the plane using the Mercator projection, we obtain a semi-linear elliptic partial differential ...
Susanna V. Haziot
semanticscholar   +1 more source

Application of decomposition to hyperbolic, parabolic, and elliptic partial differential equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1989
The decomposition method is applied to examples of hyperbolic, parabolic, and elliptic partial differential equations without use of linearizatlon techniques.
G. Adomian
doaj   +1 more source

Differential-Difference Elliptic Equations with Nonlocal Potentials in Half-Spaces

open access: yesMathematics, 2023
We investigate the half-space Dirichlet problem with summable boundary-value functions for an elliptic equation with an arbitrary amount of potentials undergoing translations in arbitrary directions.
Andrey B. Muravnik
doaj   +1 more source

The Extended Trial Equation Method for Some Time Fractional Differential Equations

open access: yesDiscrete Dynamics in Nature and Society, 2013
Nonlinear fractional partial differential equations have been solved with the help of the extended trial equation method. Based on the fractional derivative in the sense of modified Riemann-Liouville derivative and traveling wave transformation, the ...
Yusuf Pandir   +2 more
doaj   +1 more source

A guide to the design of the virtual element methods for second- and fourth-order partial differential equations

open access: yesMathematics in Engineering, 2023
We discuss the design and implementation details of two conforming virtual element methods for the numerical approximation of two partial differential equations that emerge in phase-field modeling of fracture propagation in elastic material.
Yu Leng   +6 more
doaj   +1 more source

Path Integral Solution of Linear Second Order Partial Differential Equations I. The General Construction [PDF]

open access: yes, 2004
A path integral is presented that solves a general class of linear second order partial differential equations with Dirichlet/Neumann boundary conditions. Elementary kernels are constructed for both Dirichlet and Neumann boundary conditions.
Abraham   +16 more
core   +2 more sources

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