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PERIODIC SOLUTIONS IN THE SINGULAR LOGARITHMIC POTENTIAL

DOI: 10.4067/S0716-09172007000200003

Keywords: orlicz-sobolev spaces, strongly nonlinear problems.

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Abstract:

we consider the singular logarithmic potential , a potential which plays an important role in the modelling of triaxial systems, such as elliptical galaxies or bars in the centres of galaxy discs. using properties of the central field in the axis-symmetric case we obtain periodic solutions which are symmetric with respect to the origin for weak anisotropies. also we generalize our result in order to include more general perturbations of the logarithmic potential.

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