Results 21 to 30 of about 2,995 (267)

Nonlinear Elliptic Equations with Singular Terms and Combined Nonlinearities [PDF]

open access: yesAnnales Henri Poincaré, 2011
From the abstract: ``We consider nonlinear elliptic Dirichlet problems with a singular term, a concave (i.e., \((p-1)\)-sublinear) term and a Carathéodory perturbation. We study the cases where the Carathéodory perturbation is \((p-1)\)-linear and \((p-1)\)-superlinear near \(+\infty\).
Gasiński, Leszek   +1 more
openaire   +3 more sources

On Differential Equations Derived from the Pseudospherical Surfaces

open access: yesAbstract and Applied Analysis, 2014
We construct two metric tensor fields; by means of these metric tensor fields, sinh-Gordon equation and elliptic sinh-Gordon equation are obtained, which describe pseudospherical surfaces of constant negative Riemann curvature scalar σ = −2, σ = −1 ...
Hongwei Yang, Xiangrong Wang, Baoshu Yin
doaj   +1 more source

Complex optical solutions and modulation instability of hyperbolic Schrödinger dynamical equation

open access: yesResults in Physics, 2019
Complex hyperbolic Schrödinger equation describes ultra-short pulse propagation in nonlinear media fiber optics. In this paper, new complex solutions for the complex hyperbolic Schrödinger equation are constructed using generalized elliptic equation ...
Wilson Osafo Apeanti   +2 more
doaj   +1 more source

Elliptic Equations with Weight and Combined Nonlinearities

open access: yesAdvanced Nonlinear Studies, 2016
Abstract We consider the equation -
Furtado, Marcelo F.   +2 more
openaire   +2 more sources

The (G′/G)-expansion method for solving a nonlinear PDE describing the nonlinear low-pass electrical lines

open access: yesJournal of Taibah University for Science, 2019
In this paper, we apply the (G′/G)-expansion method based on three auxiliary equations, namely, the generalized Riccati equation $ G^{\prime}(\xi ) = r + pG(\xi ) + q{G^2}(\xi ) $ , the Jacobi elliptic equation $ {({G^{\prime}(\xi )} )^2} = R + Q{G^2 ...
Ayad M. Shahoot   +4 more
doaj   +1 more source

The exact solutions for the nonlinear variable-coefficient fifth-order Schrödinger equation

open access: yesResults in Physics, 2022
In the paper, the nonlinear variable-coefficient fifth-order Schrödinger (NLVS) equation is researched. The NLVS equation is an integrable equation, which can be described the spreading of ultrashort pulses in an inhomogeneous optical fiber.
Cheng’ao Li, Junliang Lu
doaj   +1 more source

ALGORITHMS AND VISUALIZATION FOR SOLUTIONS OF NONLINEAR ELLIPTIC EQUATIONS [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2000
In this paper, we compute and visualize solutions of several major types of semilinear elliptic boundary value problems with a homogeneous Dirichlet boundary condition in 2D. We present the mountain–pass algorithm (MPA), the scaling iterative algorithm (SIA), the monotone iteration and the direct iteration algorithms (MIA and DIA). Semilinear elliptic
Goong Chen, Jianxin Zhou, Wei-Ming Ni
openaire   +2 more sources

On the $BMO$ and $C^{1,\gamma}$-regularity for a weak solution of fully nonlinear elliptic systems in dimension three and four

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
We consider nonlinear elliptic system of type \begin{equation*} -D_{\alpha}A_{i}^{\alpha}(x,Du)=D_{\alpha}f_{i}^{\alpha} \end{equation*} and give conditions guaranteeing $C^{1,\gamma}$ interior regularity of weak solutions.
Josef Daněček, Jana Stará
doaj   +1 more source

Quasilinear Elliptic Equations with Singular Nonlinearity

open access: yesAdvanced Nonlinear Studies, 2016
Abstract In this paper, motivated by recent works on the study of the equations which model electrostatic MEMS devices, we study the quasilinear elliptic equation (Pλ) {
João Marcos do Ó, Esteban da Silva
openaire   +2 more sources

Radially Symmetric Solutions of a Nonlinear Elliptic Equation [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
We investigate the existence and asymptotic behavior of positive, radially symmetric singular solutions of w′′ + ((N − 1)/r)w′−|w|p−1w = 0, r > 0. We focus on the parameter regime N > 2 and 1 < p < N/(N − 2) where the equation has the closed form, positive singular solution w1 = (4 − 2(N − 2)(p − 1)/(p − 1) 2) 1/(p−1)r−2/(p−1), r > 0 ...
Edward P. Krisner, William C. Troy
openaire   +3 more sources

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