Geodesic

Tome 47 (1992) no. 3

Sommaire

Nikolai Nikolaevich Bogolyubov (obituary)
p. 1-3
Periodic billiard trajectories in polygons: generating mechanisms
p. 5-80
Finiteness conditions and factorizations in infinite groups
p. 81-126
Factorization of evolution equations
p. 127-162
The collineation group of Hilbert's example of a~projective plane
p. 163-164
A~topological classification of the Goryachev--Chaplygin integrable case with a~generalized potential in rigid body dynamics
p. 165-166
On a~problem of combinatorial geometry
p. 167-168
Folding of Verma modules over the Lie algebra $\mathfrak{sl}(2, \mathbb C)$ and hidden
Integration of Hamiltonian systems by the method of the $\overline\partial$ -problem
p. 170-171
Proof of S.\,P.~Novikov's conjecture for the case of small perturbations of rational magnetic fields
p. 172-173
An example of non-isomorphic commutative chain rings
p. 174-175
On the maximal possible rate of growth of orthonormal eigenfunctions of a~Sturm--Liouville operator with a~continuous positive weight function
p. 176-177
On the asymptotic properties of solutions of a~second-order non-linear equation
p. 178-179
Phragm\'en-Lindel\"of theorems for elliptic equations
p. 180-181
The fundamental dimension of subcompacta
p. 182-183
Classification of flat tori that admit closed minimal nets of a~given type
p. 184-185
Pseudonormability of topological semigroup rings
p. 186-187
On a~problem with an unknown boundary in the hydrodynamics of electrically conducting media
p. 188-189
Investigation of the stability of the method of macroparticles
p. 190-191
A~flat pseudo-Riemannian structure on the tangent bundle of a~flat manifold
p. 192-193
Quaternion algebras over local rings
p. 194-195
Mikhail Mikhailovich Lavrent'ev (on his sixtieth birthday)
p. 197-200
Abdukhamid Dzhuraevich Dzhuraev (on his sixtieth birthday)
p. 201-204
Nikolai Nikolaevich Bogolyubov (photo)
Evgenii Frolovich Mishchenko (congratulation)
Meetings of the Leningrad Mathematical Society
XVI~School on Operator Theory in Functional Spaces
International Autumn School ``Topology Applications in Algebra and Differential Geometry'' in Republic of Estonia
Second ``Mathematical Readings'' in memory of M.\,Ya.~Suslin
New books on mathematics