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机译:An n Center Problem as an Example of a Geodesic Billiard Map with Singularities: Poincare Maps and Dynamics
Univ Autonoma Metropolitana Unidad Iztapalapa, Dept Matemat, Del Iztapalapa 09340, DF, Mexico;
Poincare maps; n-Center problem; Jacobi metric; Geodesic billiards;