2015, Volume 20, Issue 2

Geometry, Topology, and Applications (Dedicated to the 70th Birthday of Academician A. T. Fomenko), Part 1

	Averaging and trajectories of a Hamiltonian system appearing in graphene placed in a strong magnetic field and a periodic potential A. Yu. Anikin, J. Brüning, S. Yu. Dobrokhotov		5–20
	On the geometry of quadratic second-order Abel ordinary differential equations P. V. Bibikov		21–34
	On the completeness of the Manakov integrals B. Gajić, V. Dragović, B. Jovanović		35–49
	Topological invariants for elliptical billiards and geodesics on ellipsoids in the Minkowski space V. Dragović, M. Radnović		51–64
	The degree of compact multivalued perturbations of Fredholm mappings of positive index and its application to a certain optimal control problem V. G. Zvyagin		65–87
	Minimal spanning trees on infinite sets A. O. Ivanov, A. A. Tuzhilin		89–103
	On embeddings of topological groups S. Iliadis		105–112
	Base normal inductive dimension $\mathrm I$ of cubes A. V. Karassev, K. L. Kozlov		113–124
	On the number of nontrivial projective transformations of closed manifolds V. S. Matveev		125–131
	Transitive Lie algebroids. Categorical point of view A. S. Mishchenko, Xiaoyu Li		133–156
	On two geometric problems arising in mathematical physics A. G. Sergeev		157–166
	On differential characteristic classes of metrics and connections D. A. Timashev		167–183
	Topological atlas of the Kovalevskaya top in a double field M. P. Kharlamov, P. E. Ryabov		185–230