Geodesic

Tome 50 (1995) no. 1

Sommaire

The geometry of spherical curves and the algebra of quaternions
p. 1-68
Lie algebras of infinitesimal projective transformations of Lorentz manifolds
p. 69-143
Poincar\'e models, rigorous justification of the second element of thermodynamics on the basis of mechanics, and the Fermi acceleration mechanism
p. 145-189
Anti-isomorphism of endomorphism rings of modules and Morita anti-equivalence
p. 191-192
A~criterion for the topological conjugacy of Hamiltonian flows on two-dimensional compact surfaces
p. 193-194
Abelian Bloch solutions of the two-dimensional Schr\"odinger equation
p. 195-197
On lacunae in the spectrum of the three-dimensional periodic Schr\"odinger operator with a~magnetic field
p. 198-199
Topological classification of quadratic-integrable geodesic flows on a~two-dimensional torus
p. 200-201
Surfaces of constant negative curvature in Galilean space and the Klein--Gordon equation
p. 202-204
Obstruction groups to splitting along one-sided submanifolds
p. 205-207
Abelian groups of certain classes with isomorphic endomorphism rings
p. 208-210
Projective Fr\'echet modules with the approximation property
p. 211-213
A~class of hypergeometric differential equations with three parameters and the symmetry of the Appell function $F_2(1,1)$
p. 214-215
The action variable and the Poincar\'e Hamiltonian in a~neighbourhood of the critical circle
p. 216-217
The endomorphism ring of a~distributive modul
p. 218-219
The Lax--Oleinik variational principle for some one-dimensional systems of quasilinear equations
p. 220-222
On the minimum of the dilatation of pseudo-Anosov diffeomorphisms of a pretzel
p. 223-224
A~basis for free shuffle superalgebras
p. 225-226
Evgenii Prokof'evich Dolzhenko (on his sixtieth birthday)
p. 227-229
Aleksei Georgievich Sveshnikov (on his seventieth birthday)
p. 231-233