Results 21 to 30 of about 2,043,284 (342)
Symmetry, symmetry breaking, and pion parton distributions
, 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
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Appearance of symmetry, beauty, and health in human faces [PDF]
, 2004 Symmetry is an important concept in biology, being related to mate selection strategies, health, and survival of species. In human faces, the relevance of left-right symmetry to attractiveness and health is not well understood. We compared the appearance
Aarde, S. M., Baig, K., Zaidel, D. W.
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First integrals, solutions and conservation laws of the derivative nonlinear Schrödinger equation
Partial Differential Equations in Applied Mathematics, 2022 We study the derivative nonlinear Schrödinger equation which has several applications, such as the propagation of circular polarized nonlinear Alfvén waves in plasmas.
Chaudry Masood Khalique +2 more
doaj
Detection of symmetry and anti-symmetry
Vision Research, 2005 To assess the role of second-order channels in symmetry perception we measured the effects of check size, spatial frequency content, eccentricity and grey scale range on the detection of symmetrical and anti-symmetrical patterns. Thresholds for symmetrical stimuli were only moderately affected by these manipulations.
Sandra Mancini +2 more
openaire +3 more sources
Generalization of Friedberg-Lee Symmetry [PDF]
, 2008 We study the possible origin of Friedberg-Lee symmetry. First, we propose the generalized Friedberg-Lee symmetry in the potential by including the scalar fields in the field transformations, which can be broken down to the FL symmetry spontaneously.
Chao-Shang Huang +6 more
core +2 more sources
A Variational Approach to an Inhomogeneous Second-Order Ordinary Differential System
Abstract and Applied Analysis, 2013 This paper studies the coupled inhomogeneous Lane-Emden system from the Lagrangian formulation point of view. The existence of multiple positive solutions has been discussed in the literature.
B. Muatjetjeja, C. M. Khalique
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Is a nonclassical symmetry a symmetry?
, 2009 Various versions of the definition of nonclassical symmetries existing in the literature are analyzed. Comparing properties of Lie and nonclassical symmetries leads to the conclusion that in fact a nonclassical symmetry is not a symmetry in the usual sense.
Kunzinger, Michael, Popovych, Roman
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Lie Group Classification of a Generalized Lane-Emden Type System in Two Dimensions
Journal of Applied Mathematics, 2012 The aim of this work is to perform a complete Lie symmetry classification of a generalized Lane-Emden type system in two dimensions which models many physical phenomena in biological and physical sciences.
Motlatsi Molati, Chaudry Masood Khalique
doaj +1 more source
Physics Letters B, 2015 14 pages, 1 figure, clarifying paragraph added, to appear in ...
Buchmuller, Wilfried +3 more
openaire +5 more sources
Exact Solutions and Conservation Laws of a (2+1)-Dimensional Nonlinear KP-BBM Equation
Abstract and Applied Analysis, 2013 In this paper, we study the two-dimensional nonlinear Kadomtsov-Petviashivilli-Benjamin-Bona-Mahony (KP-BBM) equation. This equation is the Benjamin-Bona-Mahony equation formulated in the KP sense.
Khadijo Rashid Adem +1 more
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