Results 21 to 30 of about 7,825,197 (282)

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

Monte-Carlo methods for the pricing of American options: a semilinear BSDE point of view [PDF]

open access: yesESAIM: Proceedings and Surveys, 2019
We extend the viscosity solution characterization proved in [5] for call/put American option prices to the case of a general payoff function in a multi-dimensional setting: the price satisfies a semilinear reaction/diffusion type equation. Based on this,
Bouchard Bruno   +3 more
doaj   +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

A Bank Salvage Model by Impulse Stochastic Controls

open access: yesRisks, 2020
The present paper is devoted to the study of a bank salvage model with a finite time horizon that is subjected to stochastic impulse controls. In our model, the bank’s default time is a completely inaccessible random quantity generating its own ...
Francesco Giuseppe Cordoni   +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

Viscosity Solutions for McKean-Vlasov Control on a Torus [PDF]

open access: yesSIAM Journal of Control and Optimization, 2022
An optimal control problem in the space of probability measures, and the viscosity solutions of the corresponding dynamic programming equations defined using the intrinsic linear derivative are studied.
H. Soner, Qin-Rong Yan
semanticscholar   +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

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

Viscosity solution of the Hamilton–Jacobi equation by a limiting minimax method [PDF]

open access: yes, 2013
For non-convex Hamiltonians, the viscosity solution and the more geometric minimax solution of the Hamilton–Jacobi equation do not coincide in general. They are nevertheless related: we show that iterating the minimax procedure during shorter and shorter
Qiaoling Wei
semanticscholar   +1 more source

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