Results 21 to 30 of about 3,546,472 (360)

Min-max differential game with partial differential equation

open access: yesAIMS Mathematics, 2022
In this paper, we are concerned with a min-max differential game with Cauchy initial value problem (CIVP) as the state trajectory for the differential game, we studied the analytical solution and the approximate solution by using Picard method (PM) of ...
Ebrahim. A. Youness   +3 more
doaj   +1 more source

Uniqueness and Regularity for the Navier-Stokes-Cahn-Hilliard System [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2018
The motion of two contiguous incompressible and viscous fluids is described within the diffuse interface theory by the so-called Model H. The system consists of the Navier-Stokes equations, which are coupled with the Cahn-Hilliard equation associated to ...
A. Giorgini, A. Miranville, R. Temam
semanticscholar   +1 more source

On the uniqueness of limit cycles for generalized Liénard systems

open access: yesOpen Mathematics, 2023
In this article, the general Liénard system dxdt=ϕ(y)−F(x),dydt=−g(x)\left\{\begin{array}{l}\frac{{\rm{d}}x}{{\rm{d}}t}=\phi (y)-F\left(x),\\ \frac{{\rm{d}}y}{{\rm{d}}t}=-g\left(x)\end{array}\right. is studied.
Zhou Hui, Yuan Yueding
doaj   +1 more source

Study of weak solutions of variational inequality systems with degenerate parabolic operators and quasilinear terms arising Americian option pricing problems

open access: yesAIMS Mathematics, 2022
In this paper, we study variational inequality systems with quasilinear degenerate parabolic operators in a bounded domain. As a series of penalty problems, the existence of the solutions in the weak sense is proved by a limit process.
Jia Li, Changchun Bi
doaj   +1 more source

Non-uniqueness for the Transport Equation with Sobolev Vector Fields [PDF]

open access: yesAnnals of PDE, 2017
We construct a large class of examples of non-uniqueness for the linear transport equation and the transport-diffusion equation with divergence-free vector fields in Sobolev spaces W1,p\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage ...
S. Modena, L. Székelyhidi
semanticscholar   +1 more source

Uniqueness and Non-uniqueness in the Einstein Constraints [PDF]

open access: yes, 2003
The conformal thin sandwich (CTS) equations are a set of four of the Einstein equations, which generalize the Laplace-Poisson equation of Newton's theory.
Arand, M.   +8 more
core   +2 more sources

External Uniqueness Is Unique Enough [PDF]

open access: yes, 2003
External uniqueness is a surprising new way to add unique references to an OOPL. The idea is that an externally unique reference is the only reference into an aggregate from outside the aggregate. Internal references which do not escape the boundary of the aggregate are innocuous and therefore permitted.
Tobias Wrigstad, Dave Clarke
openaire   +4 more sources

On Unique Decodability [PDF]

open access: yesIEEE Transactions on Information Theory, 2008
In this paper we propose a revisitation of the topic of unique decodability and of some fundamental theorems of lossless coding. It is widely believed that, for any discrete source X, every "uniquely decodable" block code satisfies E[l(X_1 X_2 ... X_n)]>= H(X_1,X_2,...,X_n), where X_1, X_2,...,X_n are the first n symbols of the source, E[l(X_1 X_2 ..
DALAI, Marco, LEONARDI, Riccardo
openaire   +4 more sources

Uniqueness of an entire function sharing a polynomial with its linear differential polynomial

open access: yesRatio Mathematica, 2020
In this paper we consider an entire function when it shares a polynomial with its linear differential polynomial. Our result is an improvement of a result of P. Li.
Imrul Kaish, Nasir Uddin Gazi
doaj   +1 more source

Uniqueness on entire functions and their nth order exact differences with two shared values

open access: yesOpen Mathematics, 2020
Let f(z) be an entire function of hyper order strictly less than 1. We prove that if f(z) and its nth exact difference Δcnf(z){\Delta }_{c}^{n}f(z) share 0 CM and 1 IM, then Δcnf(z)≡f(z){\Delta }_{c}^{n}f(z)\equiv f(z).
Chen Shengjiang, Xu Aizhu
doaj   +1 more source

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