Results 31 to 40 of about 130,007 (196)

On resistive magnetohydrodynamic equilibria of an axisymmetric toroidal plasma with flow [PDF]

open access: yes, 1999
It is shown that the magnetohydrodynamic equilibrium states of an axisymmetric toroidal plasma with finite resistivity and flows parallel to the magnetic field are governed by a second-order partial differential equation for the poloidal magnetic flux ...
Tasso, H., Throumoulopoulos, G. N.
core   +3 more sources

Fractional L\'{e}vy-driven Ornstein--Uhlenbeck processes and stochastic differential equations

open access: yes, 2011
Using Riemann-Stieltjes methods for integrators of bounded $p$-variation we define a pathwise integral driven by a fractional L\'{e}vy process (FLP). To explicitly solve general fractional stochastic differential equations (SDEs) we introduce an Ornstein-
Fink, Holger, Klüppelberg, Claudia
core   +1 more source

Moment bounds for the corrector in stochastic homogenization of a percolation model [PDF]

open access: yes, 2013
We study the corrector equation in stochastic homogenization for a simplified Bernoulli percolation model on $\mathbb{Z}^d$, $d>2$. The model is obtained from the classical $\{0,1\}$-Bernoulli bond percolation by conditioning all bonds parallel to the ...
Lamacz, Agnes   +2 more
core   +5 more sources

Social Balance and the Bernoulli Equation [PDF]

open access: yesThe American Mathematical Monthly, 2018
Since the 1940's there has been an interest in the question why social networks often give rise to two antagonistic factions. Recently a dynamical model of how and why such a balance might occur was developed. This note provides an introduction to the notion of social balance and a new (and simplified) analysis of that model.
openaire   +2 more sources

Inversion Free Algorithms for Computing the Principal Square Root of a Matrix

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2014
New algorithms are presented about the principal square root of an n×n matrix A. In particular, all the classical iterative algorithms require matrix inversion at every iteration.
Nicholas Assimakis, Maria Adam
doaj   +1 more source

Optical waves solutions for the perturbed Fokas–Lenells equation through two different methods

open access: yesResults in Physics, 2023
This study examines the perturbed Fokas–Lenells equation using two methods: the Bernoulli sub-equation function method and the 1/G′-expansion method.
Karmina K. Ali   +3 more
doaj   +1 more source

Diffusive Propagation of Energy in a Non-Acoustic Chain [PDF]

open access: yes, 2016
We consider a non acoustic chain of harmonic oscillators with the dynamics perturbed by a random local exchange of momentum, such that energy and momentum are conserved. The macroscopic limits of the energy density, momentum and the curvature (or bending)
Komorowski, Tomasz, Olla, Stefano
core   +4 more sources

Traveling wave structures of some fourth-order nonlinear partial differential equations

open access: yesJournal of Ocean Engineering and Science, 2023
This study presents a large family of the traveling wave solutions to the two fourth-order nonlinear partial differential equations utilizing the Riccati-Bernoulli sub-ODE method.
Handenur Esen   +3 more
doaj   +1 more source

A new operational matrix based on Bernoulli polynomials [PDF]

open access: yes, 2014
In this research, the Bernoulli polynomials are introduced. The properties of these polynomials are employed to construct the operational matrices of integration together with the derivative and product.
Kazem, S.   +3 more
core  

Backward stochastic variational inequalities on random interval

open access: yes, 2015
The aim of this paper is to study, in the infinite dimensional framework, the existence and uniqueness for the solution of the following multivalued generalized backward stochastic differential equation, considered on a random, possibly infinite, time ...
Maticiuc, Lucian, Răşcanu, Aurel
core   +1 more source

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