机译:The spatial Hill four-body problem I-An exploration of basic invariant sets
Univ Autonoma Coahuila, Fac Ciencias Fis Matemat, Unidad Campo Redondo, Edificio A, Saltillo 25020, Coahuila, Mexico;
ITAM, Dept Math, Rio Hondo 1, Ciudad De Mexico 01080, Mexico;
Univ Autonoma Metropolitana, Dept Matemat Aplicadas & Sistemas, Unidad Cuajimalpa, Mexico City 05348, DF, Mexico;
Four-body problem; Hill approximation; Spatial periodic orbits; Reversing symmetry;