Results 21 to 30 of about 511,017 (227)

The Modified Rational Jacobi Elliptic Functions Method for Nonlinear Differential Difference Equations

open access: yesJournal of Applied Mathematics, 2012
We modified the rational Jacobi elliptic functions method to construct some new exact solutions for nonlinear differential difference equations in mathematical physics via the lattice equation, the discrete nonlinear Schrodinger equation with a saturable
Khaled A. Gepreel   +2 more
doaj   +1 more source

Explicit solutions of some equations and systems of mathematical physics

open access: yesAdvances in Difference Equations, 2020
This paper deals at first with a fully integrable evolution system of nonlinear partial differential equations (PDEs) which is a generalization of the classical Heisenberg ferromagnet equation.
Angela Slavova, Petar Popivanov
doaj   +1 more source

On strong comparison principle for semicontinuous viscosity solutions of some nonlinear elliptic equations [PDF]

open access: yes, 2005
The strong comparison principle for semicontinuous viscosity solutions of some nonlinear elliptic equations are considered. For linear elliptic equations it is well known that the strong comparison principle is equivalent to the strong maximum ...
Giga, Yoshikazu, Ohnuma, Masaki
core   +1 more source

ABP and global Hölder estimates for fully nonlinear elliptic equations in unbounded domains [PDF]

open access: yes, 2014
We prove global Holder estimates for solutions of fully nonlinear elliptic or degenerate elliptic equations in unbounded domains under geometric conditions a la Cabre.
I. Birindelli, I. Dolcetta, A. Vitolo
semanticscholar   +1 more source

Linear Superposition in Nonlinear Equations [PDF]

open access: yes, 2001
Even though the KdV and modified KdV equations are nonlinear, we show that suitable linear combinations of known periodic solutions involving Jacobi elliptic functions yield a large class of additional solutions.
A. C. Newell   +13 more
core   +3 more sources

Symmetry of positive solutions of nonlinear elliptic equations in R

open access: yes, 1981
(1993). Radial symmetry of positive solutions of nonlinear elliptic equations in Rn. Communications in Partial Differential Equations: Vol. 18, No. 5-6, pp. 1043-1054.
B. Gidas, W. Ni, L. Nirenberg
semanticscholar   +1 more source

$$C^{2,\alpha }$$C2,α estimates for nonlinear elliptic equations in complex and almost complex geometry [PDF]

open access: yes, 2014
We describe how to use the perturbation theory of Caffarelli to prove Evans–Krylov type $$C^{2,\alpha }$$C2,α estimates for solutions of nonlinear elliptic equations in complex geometry, assuming a bound on the Laplacian of the solution.
Valentino Tosatti   +3 more
semanticscholar   +1 more source

The Simplest Equation Method and Its Application for Solving the Nonlinear NLSE, KGZ, GDS, DS, and GZ Equations

open access: yesJournal of Applied Mathematics, 2013
A good idea of finding the exact solutions of the nonlinear evolution equations is introduced. The idea is that the exact solutions of the elliptic-like equations are derived using the simplest equation method and the modified simplest equation method ...
Yun-Mei Zhao, Ying-Hui He, Yao Long
doaj   +1 more source

Existence of entropy solutions for nonlinear elliptic equations in Musielak framework with L1 data

open access: yes, 2018
We prove existence of solutions for strongly nonlinear elliptic equations of the form $$ \left\{\begin{array}{c} A(u)+g(x,u,\nabla u)=f+\mbox {div}(\phi(u))\quad \textrm{in }\Omega, \\ u\equiv0\quad \partial \Omega.
Elemine Vall Mohamed Saad Bouh   +3 more
semanticscholar   +1 more source

On a Class of Fully Nonlinear Elliptic Equations on Closed Hermitian Manifolds II: L∞ Estimate [PDF]

open access: yes, 2014
We study a class of fully nonlinear elliptic equations on closed Hermitian manifolds. Under the assumption of the cone condition, we derive the L∞ estimate directly. As an application, we solve the complex quotient equations on closed Kähler manifolds. ©
Weiling Sun
semanticscholar   +1 more source

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