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Invariant solutions to the Strominger system and the heterotic equations of motion [PDF]

open access: yesNuclear Physics B, 2017
We construct many new invariant solutions to the Strominger system with respect to a 2-parameter family of metric connections ∇ε,ρ in the anomaly cancellation equation.
Antonio Otal   +2 more
doaj   +8 more sources

Group Invariant Solutions and Conserved Quantities of a (3+1)-Dimensional Generalized Kadomtsev–Petviashvili Equation

open access: yesMathematics, 2020
In this work, we investigate a (3+1)-dimensional generalised Kadomtsev–Petviashvili equation, recently introduced in the literature. We determine its group invariant solutions by employing Lie symmetry methods and obtain elliptic, rational and ...
Innocent Simbanefayi   +1 more
doaj   +2 more sources

Nonlinear self-adjointness and invariant solutions of a 2D Rossby wave equation

open access: yesOpen Physics, 2014
The paper investigates the nonlinear self-adjointness of the nonlinear inviscid barotropic nondivergent vorticity equation in a beta-plane. It is a particular form of Rossby equation which does not possess variational structure and it is studied using a ...
Cimpoiasu Rodica, Constantinescu Radu
doaj   +2 more sources

Scale-Invariant Rotating Black Holes in Quadratic Gravity

open access: yesEntropy, 2015
Black hole solutions in pure quadratic theories of gravity are interesting since they allow the formulation of a set of scale-invariant thermodynamics laws.
Guido Cognola   +2 more
doaj   +4 more sources

Invariant Solutions and Conservation Laws of the (2 + 1)-Dimensional Boussinesq Equation

open access: yesAbstract and Applied Analysis, 2014
Invariant solutions and conservation laws of the (2 + 1)-dimensional Boussinesq equation are studied. The Lie symmetry approach is used to obtain the invariant solutions.
Wenjuan Rui, Peiyi Zhao, Yufeng Zhang
doaj   +2 more sources

Multi-scale invariant solutions in plane Couette flow: a reduced-order model approach [PDF]

open access: yesJournal of Fluid Mechanics, 2023
Plane Couette flow at Reynolds number $Re=1200$ (based on the channel half-height and half the velocity difference between the top and bottom plates) is investigated with a spatial domain designed to retain only two spanwise integral length scales.
M. McCormack, A. Cavalieri, Y. Hwang
semanticscholar   +1 more source

Lie symmetry analysis for generalized short pulse equation

open access: yesOpen Physics, 2022
Lie symmetry analysis (LSA) is one of the most common, effective, and estimation-free methods to find the symmetries and solutions of the differential equations (DEs) by following an algorithm.
Zhao Weidong   +4 more
doaj   +1 more source

λ-Symmetry and μ-Symmetry Reductions and Invariant Solutions of Four Nonlinear Differential Equations

open access: yesMathematics, 2020
On one hand, we construct λ-symmetries and their corresponding integrating factors and invariant solutions for two kinds of ordinary differential equations.
Yu-Shan Bai, Jian-Ting Pei, Wen-Xiu Ma
doaj   +1 more source

Lie symmetries of Benjamin-Ono equation

open access: yesMathematical Biosciences and Engineering, 2021
Lie Symmetry analysis is often used to exploit the conservative laws of nature and solve or at least reduce the order of differential equation. One dimension internal waves are best described by Benjamin-Ono equation which is a nonlinear partial integro ...
Weidong Zhao   +3 more
doaj   +1 more source

On symmetry reduction and some classes of invariant solutions of the (1+3)-dimensional homogeneous Monge-Ampère equation

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2021
We study the relationship between structural properties of the two-dimensional nonconjugate subalgebras of the same rank of the Lie algebra of the Poincaré group P(1,4) and the properties of reduced equations for the (1+3)-dimensional homogeneous Monge ...
Vasyl Fedorchuk, Volodymyr Fedorchuk
doaj   +1 more source

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