Results 1 to 10 of about 7,099,456 (336)

Controlled measure-valued martingales: A viscosity solution approach [PDF]

open access: yesThe Annals of Applied Probability, 2021
We consider a class of stochastic control problems where the state process is a probability measure-valued process satisfying an additional martingale condition on its dynamics, called measure-valued martingales (MVMs).
A. Cox   +3 more
semanticscholar   +1 more source

Reflected generalized discontinuous BSDEs with rcll barrier and an obstacle problem of IPDE with nonlinear Neumann boundary conditions

open access: yesModern Stochastics: Theory and Applications, 2022
Reflected generalized backward stochastic differential equations (BSDEs) with one discontinuous barrier are investigated when the noise is driven by a Brownian motion and an independent Poisson measure.
Mohammed Elhachemy, Mohamed El Otmani
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

The asymptotic behavior of solutions to a class of inhomogeneous problems: an Orlicz–Sobolev space approach

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
The asymptotic behavior of the sequence $\{v_n\}$ of nonnegative solutions for a class of inhomogeneous problems settled in Orlicz–Sobolev spaces with prescribed Dirichlet data on the boundary of domain $\Omega$ is analysed.
Andrei Grecu, Denisa Stancu-Dumitru
doaj   +1 more source

The maximum principle for viscosity solutions of elliptic differential functional equations [PDF]

open access: yesOpuscula Mathematica, 2013
This paper is devoted to the study of the maximum principle for the elliptic equation with a deviated argument. We will consider viscosity solutions of this equation.
Adrian Karpowicz
doaj   +1 more source

Parabolic Hessian Equations Outside a Cylinder

open access: yesMathematics, 2022
In this article, we mainly review the parabolic Hessian equation on the exterior region. The existence and uniqueness of solutions with asymptotic properties to the exterior problem of the parabolic Hessian equation were obtained by using the Perron ...
Limei Dai, Xuewen Guo
doaj   +1 more source

Two-scale method for the Monge-Ampère equation: Convergence to the viscosity solution [PDF]

open access: yesMathematics of Computation, 2017
We propose a two-scale finite element method for the Monge-Amp\`ere equation with Dirichlet boundary condition in dimension $d\ge2$ and prove that it converges to the viscosity solution uniformly.
R. Nochetto   +2 more
semanticscholar   +1 more source

Weighted and Well-Balanced Nonlinear TV-Based Time-Dependent Model for Image Denoising

open access: yesChaos Theory and Applications, 2023
The partial differential equation (PDE)-based models are widely used to remove additive Gaussian white noise and preserve edges, and one of the most widely used methods is the total variation denoising algorithm.
Khursheed Alam   +2 more
doaj   +1 more source

Uniqueness of the viscosity solution of a constrained Hamilton–Jacobi equation [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2018
In quantitative genetics, viscosity solutions of Hamilton–Jacobi equations appear naturally in the asymptotic limit of selection-mutation models when the population variance vanishes.
V. Calvez, King-Yeung Lam
semanticscholar   +1 more source

Effect of perforation shear on viscosity of polymer solution [PDF]

open access: yesE3S Web of Conferences, 2023
Polymer flooding is a tertiary oil recovery technology that is very suitable for the characteristics of China’s reservoirs. However, due to the fast flow rate of polymer solution in near-well zone, the shear effect of perforation blasthole and the ...
Yan Xi   +9 more
doaj   +1 more source

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