Results 131 to 140 of about 1,989 (226)

Oblique derivative problems for generalized Rassias equations of mixed type with several characteristic boundaries

open access: yesElectronic Journal of Differential Equations, 2009
This article concerns the oblique derivative problems for second-order quasilinear degenerate equations of mixed type with several characteristic boundaries, which include the Tricomi problem as a special case.
Guo Chun Wen
doaj  

Conjectures in inverse boundary value problems for quasilinear elliptic equations

open access: yes, 2005
Access to full text in SOAR is currently suppressed. Publisher's copy of this article is accessible at: http://www.dmat.ufpe.br/CUBO/files/7_3_2005.pdf#page=64Inverse boundary value problems originated in early 80’s, from the contribution of A.P ...
Sun, Ziqi
core  

Modified Neumann–Neumann methods for semi- and quasilinear elliptic equations

open access: yes
The Neumann–Neumann method is a commonly employed domain decomposition method for linear elliptic equations. However, the method exhibits slow convergence when applied to semilinear equations and does not seem to converge at all for certain quasilinear ...
Engström, Emil, Hansen, Eskil
core   +1 more source

Behaviour near zero and near infinity of solutions to elliptic equalities and inequalities

open access: yesElectronic Journal of Differential Equations, 2001
Here we consider elliptic equations and inequalities involving quasilinear operators in divergence form and nonlinear lower order terms: $$-mathop{m div}left(mathcal{A}(x,u,abla u)ight) geq |x|^sigma u^Qquad(Q>0,sigma in mathbb{R}), $$ in dimension $Ngeq
Marie-Francoise Bidaut-Veron
doaj  

On the viscosity solutions of a stochastic differential utility problem [PDF]

open access: yes
We prove existence, uniqueness and gradient estimates of stochastic differential utility as a solution of the Cauchy problem for degenerate nonlinear partial differential equation.
Andrea Pascucci, Fabio Antonelli
core  

Rate of convergence for solutions to Dirichlet problems of quasilinear equations

open access: yesElectronic Journal of Differential Equations, 2003
We obtain rates of convergence for solutions to Dirichlet problems of quasilinear elliptic (possibly degenerate) equations in slab-like domains. The rates found depend on the convergence of the boundary data and of the coefficients of the operator. These
Zhiren Jin
doaj  

Existence of solutions for quasilinear degenerate elliptic equations

open access: yesElectronic Journal of Differential Equations, 2001
In this paper, we study the existence of solutions for quasilinear degenerate elliptic equations of the form $A(u)+g(x,u,abla u)=h$, where $A$ is a Leray-Lions operator from $W_0^{1,p}(Omega,w)$ to its dual.
Y. Akdim, E. Azroul, A. Benkirane
doaj  

Simulations of cosmic ray propagation. [PDF]

open access: yesLiving Rev Comput Astrophys, 2021
Hanasz M, Strong AW, Girichidis P.
europepmc   +1 more source

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