Shchepetilov, Alexey V. Invariant reduction of the two-body problem with central interaction on simply connected spaces of constant sectional curvature. (English) Zbl 1014.70009 Mladenov, I. M. (ed.) et al., Proceedings of the international conference on geometry, integrability and quantization, Varna, Bulgaria, September 1-10, 1999. Sofia: Coral Press Scientific Publishing. 229-240 (2000). The author considers two classical particles with central intraction on simply connected spaces of constant curvature from the invariant point of view. He uses Hamiltonian reduction method for excluding a motion of the system as a whole. By using this reduction, the author mentions that the classical two-body problem on the sphere and on the hyperbolic space reaches its maximal generality for three-dimensional spaces. So, he considers the two-body motion on three-dimensional constant curvature spaces. In section 2, the author prepares basic notations used below. In section 3, phase spaces and Hamilton functions are discussed for the sphere and for the hyperbolic space. From the invariant point of view, in section 4, the author derives a result on the Hamiltonian reduction. The final sections 5 and 6 discuss reduction of two-body system on the sphere and on the hyperbolic space.For the entire collection see [Zbl 0940.00039]. Reviewer: T.Nono (Hiroshima) Cited in 1 Review MSC: 70F05 Two-body problems 70G45 Differential geometric methods (tensors, connections, symplectic, Poisson, contact, Riemannian, nonholonomic, etc.) for problems in mechanics 70H33 Symmetries and conservation laws, reverse symmetries, invariant manifolds and their bifurcations, reduction for problems in Hamiltonian and Lagrangian mechanics 53Z05 Applications of differential geometry to physics Keywords:central intraction; Hamiltonian reduction method; two-body problem; sphere; hyperbolic space; three-dimensional constant curvature spaces; phase spaces PDF BibTeX XML Cite \textit{A. V. Shchepetilov}, in: Proceedings of the international conference on geometry, integrability and quantization, Sts. Constantine and Elena (near Varna), Bulgaria, September 1--10, 1999. Sofia: Coral Press Scientific Publishing. 229--240 (2000; Zbl 1014.70009)