Geodesic

Volume 25 (1991) no. 4

Sommaire

Structure of the singularities of operator functions with a positive imaginary part
p. 1-13
Growth of periodic orbits of dynamical systems
p. 14-22
A topological invariant which roughly classifies integrable strictly nondegenerate Hamiltonians on four-dimensional symplectic manifolds
p. 23-35
Introduction from the book ``Vertex operator algebras and the Monster''
p. 36-52
Properties of operators of extension and contraction of ideals of algebras of invariants of reductive groups in positive characteristic
p. 53-61
Polynomial operator pencils connected with problems of mechanics
p. 62-64
Vector fields on a complete intersection
p. 64-66
Sets of the first super category in Banach spaces
p. 66-69
Solutions of the Knizhnik--Zamolodchikov trigonometric equation
p. 69-71
Algebraic operators and pairs of self-adjoint operators connected by a polynomial relation
p. 72-74
Local Pl\"ucker formulas for a semisimple Lie group
p. 74-76
Discrete subgroups of $GL(2,C)$ and spinor bundles on Riemann and Klein surfaces
p. 76-78
Remark on the Lyapunov theorem on vector measures
p. 78-80
Small Schubert cells as subsets in Lie algebras
p. 81-83
Discrete spectrum of a given symmetry of the Schr\"odinger operator of an $n$-particle system in a homogeneous magnetic field
p. 83-86
Homology of nilpotent subalgebras of the Lie superalgebra $K(1, 1)$
p. 86-88
Determinant formula for Selberg-type integrals
p. 88-89
Trace formula for polynomial operator pencils and its applications
p. 90-92
Forced vibrations of a shell immersed in a viscous compressible fluid
p. 93-95