Sine-Gordon equation: Difference between revisions

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[Contributions to this section are sorely needed!]
[Contributions to this section are sorely needed!]


The sine Gordon equation
The '''sine-Gordon equation'''


<center><math>\Box u = sin(u)</math></center>
<center><math>\Box u = \sin(u)</math></center>


in <math>R^{1+1}</math> arises in the study of optical pulses, or from the Scott model of a continuum of pendula hanging from a wire. It is a completely integrable equation, and has many interesting solutions, including "breather" solutions.
in <math>R^{1+1}</math> arises in the study of optical pulses, or from the Scott model of a continuum of pendula hanging from a wire. It is a [[completely integrable]] equation, and has many interesting solutions, including "breather" solutions.


Because the non-linearity is bounded, GWP is easily obtained for <math>L^2</math> or even <math>L^1</math> data.
Because the non-linearity is bounded, GWP is easily obtained for <math>L^2</math> or even <math>L^1</math> data.


----  [[Category:Equations]]
It is also closely related to the '''sinh-Gordon equation'''
 
<center><math>\Box u = \sinh(u)</math></center>
 
and to [[Liouville's equation]].
 
[[Category:Integrability]]
[[Category:wave]]
[[Category:Equations]]

Latest revision as of 23:39, 22 January 2009

[Contributions to this section are sorely needed!]

The sine-Gordon equation

in arises in the study of optical pulses, or from the Scott model of a continuum of pendula hanging from a wire. It is a completely integrable equation, and has many interesting solutions, including "breather" solutions.

Because the non-linearity is bounded, GWP is easily obtained for or even data.

It is also closely related to the sinh-Gordon equation

and to Liouville's equation.