Results 21 to 30 of about 1,122 (176)

A high-order nonlinear Schrödinger equation with the weak non-local nonlinearity and its optical solitons

open access: yesResults in Physics, 2021
The present paper explores a high-order nonlinear Schrödinger equation in a non-Kerr law media with the weak non-local nonlinearity describing solitons’ propagation through nonlinear optical fibers.
K. Hosseini   +6 more
doaj   +1 more source

Lie Symmetry Analysis of Kudryashov‐Sinelshchikov Equation [PDF]

open access: yesMathematical Problems in Engineering, 2011
The Lie symmetry method is performed for the fifth‐order nonlinear evolution Kudryashov‐Sinelshchikov equation. We will find ones and two‐dimensional optimal systems of Lie subalgebras. Furthermore, preliminary classification of its group‐invariant solutions is investigated.
Nadjafikhah, Mehdi, Shirvani-Sh, Vahid
openaire   +1 more source

The modified generalized Kudryashov method for nonlinear space–time fractional partial differential equations of Schrödinger type

open access: yesResults in Physics, 2023
This paper presents a modified version of the generalized Kudryashov method aimed at obtaining exact solutions for fractional partial differential equations of Schrödinger type.
Fushun Liu, Yuqiang Feng
doaj   +1 more source

Solutions to the Konopelchenko-Dubrovsky equation and the Landau-Ginzburg-Higgs equation via the generalized Kudryashov technique

open access: yesResults in Physics, 2021
The (2 + 1)-dimensional Konopelchenko-Dubrovsky (KD) equation and the Landau-Ginzburg-Higgs (LGH) equation describe the nonlinear waves with weak scattering and long-range interactions between the tropical, mid-latitude troposphere, the interaction of ...
Hemonta Kumar Barman   +6 more
doaj   +1 more source

On the Solutions for a Fifth Order Kudryashov–Sinelshchikov Type Equation

open access: yesSymmetry, 2022
The fifth order Kudryashov–Sinelshchikov equation models the evolution of the nonlinear waves in a gas–liquid mixture, taking into account an interphase heat transfer, surface tension, and weak liquid compressibility simultaneously at the derivation of the equations for non-linear-waves.
Giuseppe Maria Coclite, Lorenzo di Ruvo
openaire   +1 more source

A singular limit problem for the Kudryashov-Sinelshchikov equation [PDF]

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2014
We consider the Kudryashov-Sinelshchikov equation, which contains nonlinear dispersive effects. We prove that as the diffusion parameter tends to zero, the solutions of the dispersive equation coverge to the entropy ones of the Burgers equation. The proof relies on deriving suitable a priori estimates together with an application of the compansated ...
COCLITE, Giuseppe Maria, di Ruvo L.
openaire   +3 more sources

Pharmacology complex compound of pro-gly-pro-leu with heparin: hypoglycemic, fibrinolitic and anticoagulant effects in rats with hyperglycemia

open access: yesФармация и фармакология (Пятигорск), 2019
Previously it was shown that the use of regulatory peptides of the glyprolin family helps to normalize the hemostasis system and blood glucose levels in experimental resistant hyperglycemia in rats, similar to type 2 diabetes mellitus in humans.
T. Yu. Obergan   +5 more
doaj   +1 more source

Exact solutions of the generalized nonlinear Fokas-Lennells equation

open access: yesResults in Physics, 2019
Two different schemes are applied to the generalized nonlinear Fokas-Lennells equation for obtaining possible optical solitonic solutions at general orders of nonlinearities. It is known that the standard Kudryashov method leads to singular combo optical
A. Ebaid   +5 more
doaj   +1 more source

Optical solitons with Kudryashov’s sextic power-law nonlinearity

open access: yesOptik, 2022
Objective - The main objective of this paper is to investigate analytic soliton solutions of a nonlinear Schrodinger equation (NLSE), including Kudryashov's sextic power-law nonlinearity by introducing different approaches of two efficient analytical methods. The considered equa-tion has been recently introduced by N. A.
Muslum Ozisik   +3 more
openaire   +2 more sources

New wave behaviors of the Fokas-Lenells model using three integration techniques.

open access: yesPLoS ONE, 2023
In this investigation, we apply the improved Kudryashov, the novel Kudryashov, and the unified methods to demonstrate new wave behaviors of the Fokas-Lenells nonlinear waveform arising in birefringent fibers.
Mohammad Safi Ullah   +2 more
doaj   +1 more source

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