Results 21 to 30 of about 118,565 (240)

Lump, interaction of lump and kink and solitonic solution of nonlinear evolution equation which describe incompressible viscoelastic Kelvin–Voigt fluid

open access: yesPartial Differential Equations in Applied Mathematics, 2022
In this script, we consider the modified Oskolkov equation in incompressible viscoelastic Kelvin–Voigt fluid and fluid dynamics. A dominant direct algebraic method namely modified simple equation method (MSE) uses to retrieve various dynamical structural
M.M. Roshid   +3 more
doaj   +1 more source

A New Nonlinear Equation with Lump‐Soliton, Lump‐Periodic, and Lump‐Periodic‐Soliton Solutions

open access: yesComplexity, 2019
An extended (2+1)‐dimensional Calogero‐Bogoyavlenskii‐Schiff‐like equation is proposed by using the generalized bilinear operators based on a prime number p = 3. By combining multiexponential functions with a quadratic function, the interaction between lumps and multikink soliton is generated.
Bo Ren, Ji Lin, Zhi-Mei Lou
openaire   +2 more sources

Field theory models for tachyon and gauge field string dynamics [PDF]

open access: yes, 2000
In hep-th/0008227, the unstable lump solution of \phi^3 theory was shown to have a spectrum governed by the solvable Schroedinger equation with the \ell=3 reflectionless potential and was used as a model for tachyon condensation in string theory. In this
Minahan, Joseph A., Zwiebach, Barton
core   +2 more sources

A Solvable Toy Model for Tachyon Condensation in String Field Theory [PDF]

open access: yes, 2000
The lump solution of \phi^3 field theory provides a toy model for unstable D-branes of bosonic string theory. The field theory living on this lump is itself a cubic field theory involving a tachyon, two additional scalar fields, and a scalar field ...
Zwiebach, Barton
core   +2 more sources

Application of the polynomial function method to the variable-coefficient Kadomtsev–Petviashvili equation

open access: yesResults in Physics, 2023
In this paper, we research a (2+1)-dimensional variable-coefficient Kadomtsev–Petviashvili equation in fluid dynamics and plasma physics. The lump, lump-soliton and lump-periodic solutions are derived based on the variable-coefficient polynomial function
Xue-Sha Wu, Hao-Miao Zhang, Jian-Guo Liu
doaj   +1 more source

A class of lump solutions and localized excitations for the generalized (3 + 1)-dimensional KP equation

open access: yesResults in Physics, 2020
Based on symbolic computation and Hirota bilinear form, a class of lump solutions for the (3 + 1)-dimensional generalized Kadomtsev-Petviashvili (gKP) equation is given. As a result, the lump solution shows a new perspective to knowledge them. Meanwhile,
Ping Cui
doaj   +1 more source

The energy of the analytic lump solution in SFT [PDF]

open access: yes, 2011
In a previous paper a method was proposed to find exact analytic solutions of open string field theory describing lower dimensional lumps, by incorporating in string field theory an exact renormalization group flow generated by a relevant operator in a ...
A Sen   +42 more
core   +2 more sources

Multiple soliton and M-lump waves to a generalized B-type Kadomtsev–Petviashvili equation

open access: yesResults in Physics, 2023
In this study, we focus on the (3+1)-dimensional generalized B-type Kadomtsev–Petviashvili (gBKP) equation in fluid dynamics, which is useful for modeling weakly dispersive waves transmitted in quasi media and fluid mechanics.
Hajar F. Ismael   +4 more
doaj   +1 more source

Analytic solutions for Dp branes in SFT [PDF]

open access: yes, 2011
This is the follow-up of a previous paper [ArXiv:1105.5926], where we calculated the energy of an analytic lump solution in SFT, representing a D24-brane. Here we describe an analytic solution for a Dp-brane, for any p, and compute its energy.Comment: 14
Bonora, L., Giaccari, S., Tolla, D. D.
core   +2 more sources

Multiple lump solutions of the (2+1)-dimensional sawada-kotera-like equation

open access: yesFrontiers in Physics, 2022
In this paper, 1-lump solution and 2-lump solution of a (2 + 1)-dimensional Sawada-Kotera-like equation are obtained by means of the Hirota’s bilinear method and long wave limit method.
Feng-Hua Qi   +3 more
doaj   +1 more source

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