Results 221 to 230 of about 196,377 (258)

Global weak solutions to a Vlasov‐Fokker‐Planck/compressible non‐Newtonian fluid system of equations

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2020
This article is devoted to a coupled microscopic/macroscopic model describing the evolution of particles dispersed in a fluid. The system consists in a Vlasov‐Fokker‐Planck equation to describe the microscopic motion of the particles coupled to the ...
Huantao Zhu, Li Fang, J. Muhammad, Zhenhua Guo   +3 more
semanticscholar   +1 more source

Oscillation tests for difference equations with non-monotone retarded arguments

Applied Mathematics Letters, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Emad R. Attia, George E. Chatzarakis
openaire   +2 more sources

Oscillations of difference equations with non-monotone retarded arguments

Applied Mathematics and Computation, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chatzarakis, G. E., Öcalan, Özkan
openaire   +2 more sources

Oscillation Results for Difference Equations with Several Non-Monotone Advanced Arguments

Mathematics
We investigate the oscillatory behavior of a first-order linear difference equation with several advanced arguments. New sufficient conditions for oscillation are established, and we show, through carefully constructed counterexamples, that many well ...
Md Taufiq Nasseef, G. Chatzarakis, Emad Attia   +2 more
semanticscholar   +1 more source

Oscillation tests for difference equations with several non-monotone deviating arguments

Mathematica Slovaca, 2018
Abstract The purpose of this paper is to derive sufficient conditions for the oscillation of all solutions of a difference equation with several non-monotone deviating arguments and nonnegative coefficients. Corresponding difference equations of both retarded and advanced type are studied.
Chatzarakis, George E., Dmitrović, Lana Horvat, Pašić, Mervan   +2 more
openaire   +3 more sources

Oscillations of differential equations with several non-monotone advanced arguments

Dynamical Systems, 2015
Consider the first-order advanced differential equation of the form where qi, 1 ≤ i ≤ m are functions of non-negative real numbers, and σi, 1 ≤ i ≤ m are functions of positive real numbers such that σi(t) > t for t ≥ t0. New oscillation criteria, involving lim sup and lim inf, are established, in the case of non-monotone advanced arguments.
G.E. Chatzarakis, Özkan Öcalan
openaire   +1 more source

Iterative oscillation criteria for first-order difference equations with non-monotone advanced arguments

Journal of Applied Mathematics and Computing, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Emad R. Attia, George E. Chatzarakis
openaire   +1 more source

Application of a quasi-implicit scheme to the simulation of non-Newtonian flows through porous media

ECMOR XVI - 16th European Conference on the Mathematics of Oil Recovery, 2018
Summary When modeling non-Newtonian flows through porous media, numerical difficulties arise due to the velocity-dependence of phase mobilities. While a fully implicit treatment is unconditionally stable in the von Neumann sense, it leads to at least a ...
R. Loubens, L. León, L. Patacchini
semanticscholar   +1 more source

A non-increasing Lindley-type equation

Queueing Syst. Theory Appl., 2007
In this paper we study the Lindley-type equation W=max {0,B−A−W}. Its main characteristic is that it is a non-increasing monotone function in its main argument W.
M. Vlasiou
semanticscholar   +1 more source

The Optimal Sample Complexity of Linear Contracts

arXiv.org
In this paper, we settle the problem of learning optimal linear contracts from data in the offline setting, where agent types are drawn from an unknown distribution and the principal's goal is to design a contract that maximizes her expected utility ...
M. Hogsgaard
semanticscholar   +1 more source