Geodesic

Tome 48 (1993) no. 2

Sommaire

Nikolai Ivanovich Lobachevskii (on the bicentenary of his birth)
p. 1-13
Volumes of non-Euclidean polyhedra
p. 15-45
The heritage of N.\,I.~Lobachevskii and the activity of Kazan geometers
p. 47-74
Manifolds over algebras and their application to the geometry of jet bundles
p. 75-104
Pseudo--Riemannian manifolds with common geodesies
p. 105-160
Nikolai Nikolaevich Chentsov (obituary)
p. 161-166
Free algebras of Mal'tsev products of varieties
p. 167-169
On a~combinatorial problem
Gaydar's formula for the greatest common divisor of several polynomials
p. 171-172
S.\,P.~Novikov's problem on the semiclassical motion of an electron
p. 173-174
Systems of linear equations over a~commutative ring
p. 175-177
On a~theorem of de la Harpe and Karoubi
p. 178-179
Comparison of the stability of the focus of a second-order system and difference schemes corresponding to it
p. 180-181
An analogue of Cayley's theorem for cyclic symmetric connected graphs with one cycle connected with generalized Lyashko--Looijenga covers
p. 182-183
A~eneralized Lovasz inequality for perfect graphs
p. 184-185
An explicit description of a~model of a~$\mathcal G$-invariant magnet
p. 186-187
Subgraphs and factorizations of functional graphs
p. 188-189
Centrally contractible $C^*$-algebras
p. 190-191
Free locally convex spaces generated by locally compact groups
p. 192-194
Enveloping groups of Moufang loops
p. 195-196
Necessary conditions for the stable convergence of semimartingales
p. 197-198
Topological types of actions of the group $(Z/2Z)^n$ on surfaces
p. 199-200
Cyclotomic polynomials and singularities of complex hypersurfaces
p. 201-203
A~topological portrait of certain multidimensional Hamiltonian systems
p. 204-205
Two remarks on four-dimensional cubics
p. 206-208
Nikolai Ivanovich Lobachevskii (photo)