A new (3 + 1)-dimensional Painlevé-integrable Sakovich equation: multiple soliton solutions

Purpose This paper aims to develop a new (3 + 1)-dimensional Painlev´e-integrable extended Sakovich equation. This paper formally derives multiple soliton solutions for this developed model. Design/methodology/approach This paper uses the simplified Hirota’s method for deriving multiple soliton solutions. Findings This paper finds that the developed (3 + 1)-dimensional Sakovich model exhibits complete integrability in analogy with the standard Sakovich equation. Research limitations/implications This paper addresses the integrability features of this model via using the Painlev´e analysis. This paper reports multiple soliton solutions for this equation by using the simplified Hirota’s method. Practical implications The study reports three non-linear terms added to the standard Sakovich equation. Social implications The study presents useful algorithms for constructing new integrable equations and for handling these equations. Originality/value The paper reports a new Painlev´e-integrable extended Sakovich equation, which belongs to second-order partial differential equations. The constructed model does not contain any dispersion term such as uxxx.

The Soliton Solutions for the Nonlinear Schrödinger Equation with Self-consistent Source

In this paper by using Hirota’s method, the one and two soliton solutions of nonlinear Schr¨odinger equation with self-consistent source are studied. We have shown the evolution of the one and two soliton solutions in detail by using graphics.

Soliton Solutions for a Nonisospectral Semi-Discrete Ablowitz–Kaup–Newell–Segur Equation

In this paper, we study a nonisospectral semi-discrete Ablowitz–Kaup–Newell–Segur equation. Multisoliton solutions for this equation are given by Hirota’s method. Dynamics of some soliton solutions are analyzed and illustrated by asymptotic analysis. Multisoliton solutions and dynamics to a nonisospectral semi-discrete modified Korteweg-de Vries equation are also discussed.

Higher dimensional integrable Vakhnenko–Parkes equation: multiple soliton solutions

Purpose This study aims to develop a new (3 + 1)-dimensional Painlevé-integrable extended Vakhnenko–Parkes equation. The author formally derives multiple soliton solutions for this developed model. Design/methodology/approach The study used the simplified Hirota’s method for deriving multiple soliton solutions. Findings The study finds that the developed (3 + 1)-dimensional Vakhnenko–Parkes model exhibits complete integrability in analogy with the standard Vakhnenko–Parkes equation. Research limitations/implications This study addresses the integrability features of this model via using the Painlevé analysis. The study also reports multiple soliton solutions for this equation by using the simplified Hirota’s method. Practical implications The work reports extension of the (1 + 1)-dimensional standard equation to a (3 + 1)-dimensional model. Social implications The work presents useful algorithms for constructing new integrable equations and for handling these equations. Originality/value The paper presents an original work with newly developed integrable equation and shows useful findings.

New Generalized Soliton Solutions for a (3+1)-Dimensional Equation

In this paper, we investigate the nonlinear wave solutions for a (3+1)-dimensional equation which can be reduced to the potential KdV equation. We present generalized N-soliton solutions in which some arbitrarily differentiable functions are involved by using a simplified Hirota’s method. Our work extends some previous results.

A seventh-order member of KdV6 hierarchy and its (2+1)-dimensional extensions

In this work, we investigate a completely integrable seventh-order member of the KdV6 hierarchy. We develop two extensions of (2[Formula: see text]+[Formula: see text]1) dimensions for this equation. We show that the dispersion relations are distinct that will reflect on the structures of the obtained solutions. We use the simplified Hirota’s method to determine multiple soliton solutions for these three equations. The integrability of the extended equations is tested by using the Painlevé analysis.