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2008 | 6 | 3 | 662-670
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An action for a classical string, the equation of motion and group invariant classical solutions

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A string action which is essentially a Willmore functional is presented and studied. This action determines the physics of a surface in Euclidean three space which can be used to model classical string configurations. By varying this action an equation of motion for the mean curvature of the surface is obtained which is shown to govern certain classical string configurations. Several classes of classical solutions for this equation are discussed from the symmetry group point of view and an application is presented.
  • Department of Mathematics, University of Texas, Edinburg, TX, 78539, USA
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