Results 21 to 30 of about 134 (115)

On the method of pseudopotential for Schrödinger equation with nonlocal boundary conditions

open access: yesAbstract and Applied Analysis, Volume 6, Issue 6, Page 329-338, 2001., 2001
For stationary Schrödinger equation in ℝ n with the finite potential the singular pseudopotential is constructed in the form allowing us to find wave functions. The method does not require the knowledge of the explicit form of a potential and assumes only knowledge of the scattering amplitude for fixed level of energy.
Yuriy Valentinovich Zasorin
wiley   +1 more source

Attractors of semigroups associated with nonlinear systems for diffusive phase separation

open access: yesAbstract and Applied Analysis, Volume 1, Issue 2, Page 169-192, 1996., 1996
We consider a model for diffusive phase transitions, for instance, the component separation in a binary mixture. Our model is described by two functions, the absolutete temperature θ : = θ(t, x) and the order parameter w : = w(t, x), which are governed by a system of two nonlinear parabolic PDEs.
Nobuyuki Kenmochi
wiley   +1 more source

Qualitative analysis for the nonlinear fractional Hartree type system with nonlocal interaction

open access: yesAdvances in Nonlinear Analysis, 2021
In the present paperwe study the existence of nontrivial solutions of a class of static coupled nonlinear fractional Hartree type system. First, we use the direct moving plane methods to establish the maximum principle(Decay at infinity and Narrow region
Wang Jun
doaj   +1 more source

The Nonlinear Schrödinger Equation Derived From the Fifth‐Order Korteweg–de Vries Equation Using Multiple Scales Method

open access: yesInternational Journal of Differential Equations, Volume 2025, Issue 1, 2025.
The mathematical models of problems that arise in many branches of science are nonlinear equations of evolution (NLEE). For this reason, NLEE have served as a language in formulating many engineering and scientific problems. Although the origin of nonlinear evolution equations dates back to ancient times, significant developments have been made in ...
Murat Koparan, Salim A. Messaoudi
wiley   +1 more source

Algebraic Lower Bounds on the Spatial Analyticity Radius for Higher Order Nonlinear Schrödinger Equations

open access: yesJournal of Applied Mathematics, Volume 2025, Issue 1, 2025.
We investigate the initial value problem associated to the higher order nonlinear Schrödinger equation i∂tu+−1j+1∂x2ju=u2ju x,t≠0∈ℝ,ux,0=u0x, where j ≥ 2 is any integer, u is a complex valued function, and the initial data u0 is real analytic on ℝ and has a uniform radius of spatial analyticity σ0 in the space variable.
Tegegne Getachew   +3 more
wiley   +1 more source

Scattering for Systems of N Weakly Coupled NLS Equations on R^D x M^2 in the Energy Space [PDF]

open access: yes, 2016
[Venkov George; Венков Георги]2010 Mathematics Subject Classification: 35J10, 35Q55, 35G50 ...
Tarulli, Mirko, Venkov, George
core  

Local minimizers for the NLS equation with localized nonlinearity on noncompact metric graphs

open access: yesOpen Mathematics
We investigate the existence of local minimizers for the nonlinear Schrödinger (NLS) equation with localized nonlinearity on noncompact metric graphs. In the absence of ground states, we prove that normalized local minimizers of the NLS equation do exist
Li Xiaoguang
doaj   +1 more source

Optimal Interpolation Constant for the Generalized Schrödinger-Newton System [PDF]

open access: yes, 2015
[Georgiev Vladimir; Георгиев Владимир]; [Venkov George; Венков Георги]2010 Mathematics Subject Classification: 35A05, 35A15, 35Q51 ...
Georgiev, Vladimir, Venkov, George
core  

Global well-posedness of some high-order focusing semilinear evolution equations with exponential nonlinearity

open access: yesAdvances in Nonlinear Analysis, 2018
In even space dimensions, the initial value problems for some high-order focusing semilinear evolution equations with exponential nonlinearities are considered.
Saanouni Tarek
doaj   +1 more source

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