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Fitting Invariant Curves on Billiard Tables and the Birkhoff-Herman Theorem. - Construction of Periodic Orbits in Hill's Problem for C ?. - Are there perverse choreographies?. - Blow up of total collision in the tetrahedral non-rotating four body problem.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.