Results 31 to 40 of about 2,043,284 (342)

Symmetry impedes symmetry discrimination

open access: yesJournal of Vision, 2005
Objects in the world, natural and artificial alike, are often bilaterally symmetric. The visual system is likely to take advantage of this regularity to encode shapes for efficient object recognition. The nature of encoding a symmetric shape, and of encoding any departure from it, is therefore an important matter in visual perception. We addressed this
Tjan, B., Liu, Z.
openaire   +4 more sources

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

open access: yesAbstract and Applied Analysis, 2013
We study a nonlinear evolution partial differential equation, namely, the (2+1)-dimensional Boussinesq equation. For the first time Lie symmetry method together with simplest equation method is used to find the exact solutions of the (2+1)-dimensional ...
Letlhogonolo Daddy Moleleki   +1 more
doaj   +1 more source

CP as a Symmetry of Symmetries

open access: yesJournal of Physics: Conference Series, 2017
It is explained that the Standard Model combined charge conjugation and parity transformation (CP) is a simultaneous complex conjugation outer automorphism transformation of gauge and space-time symmetries. Simple examples are given for the general concept of outer automorphisms ("symmetries of symmetries"), as well as for their possible actions on ...
openaire   +3 more sources

Patterns, symmetry, and symmetry breaking [PDF]

open access: yesCommunications of the ACM, 2008
Explaining software patterns by breaking the symmetry created by programming languages.
openaire   +3 more sources

New Exact Solutions for a Generalized Double Sinh-Gordon Equation

open access: yesAbstract and Applied Analysis, 2013
We study a generalized double sinh-Gordon equation, which has applications in various fields, such as fluid dynamics, integrable quantum field theory, and kink dynamics. We employ the Exp-function method to obtain new exact solutions for this generalized
Gabriel Magalakwe   +1 more
doaj   +1 more source

Symmetries of Symmetry Breaking Constraints

open access: yes, 2010
Symmetry is an important feature of many constraint programs. We show that any problem symmetry acting on a set of symmetry breaking constraints can be used to break symmetry. Different symmetries pick out different solutions in each symmetry class. This simple but powerful idea can be used in a number of different ways.
George Katsirelos, Toby Walsh
openaire   +4 more sources

Dressing symmetries

open access: yesCommunications in Mathematical Physics, 1992
(29 pages)
Babelon, Olivier, Bernard, Denis
openaire   +5 more sources

Symmetries and the antibracket [PDF]

open access: yesNuclear Physics B, 1995
32 pages ...
Alfaro SolĂ­s, Jorge Luis   +1 more
openaire   +5 more sources

Gauge non-invariance as tests of emergent gauge symmetry [PDF]

open access: yes, 2010
We motivate the concept of emergent gauge symmetry and discuss ways that this concept can be tested. The key idea is that if a symmetry is emergent, one should look for small violations of this symmetry because the underlying fundamental theory does not ...
Anber, Mohamed   +2 more
core   +3 more sources

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