Kobtsev Ivan Fedorovich

Publications in Math-Net.Ru

1. An elliptic billiard in a potential force field: classification of motions, topological analysis
   
   Mat. Sb., 211:7 (2020),  93–120
2. The geodesic flow on a two-dimensional ellipsoid in the field of an elastic force. Topological classification of solutions
   
   Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 2018, no. 2,  27–33