Results 31 to 40 of about 1,997,176 (295)

QCD Baryons in the 1/N_c Expansion [PDF]

open access: yes, 2001
The 1/N_c expansion provides a theoretical method for analyzing the spin-flavor symmetry properties of baryons in QCD that is quantitative, systematic and predictive.
Jenkins, E.
core   +2 more sources

Symmetries, Traveling Wave Solutions, and Conservation Laws of a (3+1)-Dimensional Boussinesq Equation

open access: yesAdvances in Mathematical Physics, 2014
We analyze the (3+1)-dimensional Boussinesq equation, which has applications in fluid mechanics. We find exact solutions of the (3+1)-dimensional Boussinesq equation by utilizing the Lie symmetry method along with the simplest equation method.
Letlhogonolo Daddy Moleleki   +1 more
doaj   +1 more source

On the solutions and conservation laws of the Yu–Toda–Sasa–Fukuyama equation of plasma physics

open access: yesResults in Physics, 2021
In this work, we investigate the two-dimensional Yu–Toda–Sasa–Fukuyama equation, which has many applications in plasma physics and other fields of study in natural sciences.
Karabo Plaatjie, Chaudry Masood Khalique
doaj   +1 more source

Exact Solutions of Generalized Boussinesq-Burgers Equations and (2+1)-Dimensional Davey-Stewartson Equations

open access: yesJournal of Applied Mathematics, 2012
We study two coupled systems of nonlinear partial differential equations, namely, generalized Boussinesq-Burgers equations and (2+1)-dimensional Davey-Stewartson equations.
Isaiah Elvis Mhlanga   +1 more
doaj   +1 more source

A study of (3+1)-dimensional generalized Korteweg-de Vries- Zakharov-Kuznetsov equation via Lie symmetry approach

open access: yesResults in Physics, 2020
In this work, we analytically examine a (3+1)-dimensional generalized Korteweg-de Vries-Zakharov-Kuznetsov equation (gKdV-ZKe). Solutions of this equation, including a non-topological soliton, are obtained by Lie symmetry reductions and direct ...
Chaudry Masood Khalique   +1 more
doaj   +1 more source

Symmetry, symmetry breaking, and pion parton distributions

open access: yes, 2020
Pion valence, glue and sea distributions are calculated using a continuum approach to the two valence-body bound-state problem. Since the framework is symmetry preserving, physical features of the distributions are properly expressed.
Binosi, Daniele   +5 more
core   +1 more source

Axial symmetry and conformal Killing vectors [PDF]

open access: yes, 1993
Axisymmetric spacetimes with a conformal symmetry are studied and it is shown that, if there is no further conformal symmetry, the axial Killing vector and the conformal Killing vector must commute.
Carter B   +18 more
core   +3 more sources

On the conservation laws and solutions of a (2+1) dimensional KdV-mKdV equation of mathematical physics

open access: yesOpen Physics, 2018
In this paper, we study a (2+1) dimensional KdV-mKdV equation, which models many physical phenomena of mathematical physics. This equation has two integral terms in it.
Motsepa Tanki, Masood Khalique Chaudry
doaj   +1 more source

Conservation Laws for a Variable Coefficient Variant Boussinesq System

open access: yesAbstract and Applied Analysis, 2014
We construct the conservation laws for a variable coefficient variant Boussinesq system, which is a third-order system of two partial differential equations. This system does not have a Lagrangian and so we transform it to a system of fourth-order, which
Ben Muatjetjeja, Chaudry Masood Khalique
doaj   +1 more source

Log mirror symmetry and local mirror symmetry

open access: yes, 2000
We study Mirror Symmetry of log Calabi-Yau surfaces. On one hand, we consider the number of ``affine lines'' of each degree in the complement of a smooth cubic in the projective plane. On the other hand, we consider coefficients of a certain expansion of
Takahashi, Nobuyoshi
core   +1 more source

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