Results 11 to 20 of about 18,125 (165)

Viscosity Solutions to Second Order Parabolic PDEs on Riemannian Manifolds [PDF]

open access: yesActa Applicandae Mathematicae, 2011
In this work we consider viscosity solutions to second order parabolic PDEs $u_{t}+F(t,x,u,du,d^{2}u)=0$ defined on compact Riemannian manifolds with boundary conditions. We prove comparison, uniqueness and existence results for the solutions. Under the assumption that the manifold $M$ has nonnegative sectional curvature, we get the finest results.
openaire   +2 more sources

Path-dependent equations and viscosity solutions in infinite dimension [PDF]

open access: yes, 2017
Path-dependent PDEs (PPDEs) are natural objects to study when one deals with non Markovian models. Recently, after the introduction of the so-called pathwise (or functional or Dupire) calculus (see [15]), in the case of finite-dimensional underlying ...
Cosso, Andrea   +4 more
core   +2 more sources

Analysis of a viscoelastic fluid flow with Cattaneo–Christov heat flux and Soret–Dufour effects

open access: yesCase Studies in Thermal Engineering, 2023
The present study concentrates on the motion of a third-grade fluid with magneto-hydrodynamics (MHD) over a stretching surface. Additionally, the Cattaneo–Christov model is employed to derive information about the heat flux, which is subsequently ...
Shahida Rehman   +5 more
doaj   +1 more source

Time fractional model of electro-osmotic Brinkman-type nanofluid with heat generation and chemical reaction effects: application in cleansing of contaminated water

open access: yesScientific Reports, 2021
Drilling fluids execute a dominant role in the extraction of oil and gas from the land and rocks. To enhance the efficiency of drilling fluid, clay nanoparticulate has been utilized.
Hussam Alrabaiah   +4 more
doaj   +1 more source

A New Fractional-order Derivative-based Nonlinear Anisotropic Diffusion Model for Biomedical Imaging

open access: yesChaos Theory and Applications, 2023
Medical imaging, the process of visual representation of different organs and tissues of the human body, is employed for monitoring the normal as well as abnormal anatomy and physiology of the body. Imaging which can provide healthcare solutions ensuring
Yeliz Karaca   +2 more
doaj   +1 more source

Weak Continuity and Compactness for Nonlinear Partial Differential Equations [PDF]

open access: yes, 2015
We present several examples of fundamental problems involving weak continuity and compactness for nonlinear partial differential equations, in which compensated compactness and related ideas have played a significant role.
Chen, Gui-Qiang G.
core   +1 more source

Insights into the Stability of Mixed Convective Darcy–Forchheimer Flows of Cross Liquids from a Vertical Plate with Consideration of the Significant Impact of Velocity and Thermal Slip Conditions

open access: yesMathematics, 2019
This paper reflects the effects of velocity and thermal slip conditions on the stagnation-point mixed convective flow of Cross liquid moving over a vertical plate entrenched in a Darcy−Forchheimer porous medium.
Umair Khan   +4 more
doaj   +1 more source

Mild and viscosity solutions to semilinear parabolic path-dependent PDEs

open access: yes, 2016
We study and compare two concepts for weak solutions to semilinear parabolic path-dependent partial differential equations (PPDEs). The first is that of mild solutions as it appears, e.g., in the log-Laplace functionals of historical superprocesses. The aim of this paper is to show that mild solutions are also solutions in a viscosity sense.
Kalinin, A, Schied, A
openaire   +3 more sources

Representation Formula for Viscosity Solutions to a class of Nonlinear Parabolic PDEs

open access: yes, 2021
We provide a representation formula for viscosity solutions to a class of nonlinear second order parabolic PDEs given as a sup--envelope function. This is done through a dynamic programming principle derived from Denis, Hu, Peng (2010). The formula can be seen as a nonlinear extension of the Feynman--Kac formula and is based on the backward stochastic ...
openaire   +2 more sources

Boundary regularity for viscosity solutions to degenerate elliptic PDEs

open access: yesJournal of Mathematical Analysis and Applications, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

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