Geodesic

Volume 18 (1984) no. 1

Sommaire

An ergodic theorem for functions of normal operators
p. 1-6
Index of a singular point of a gradient vector field
p. 7-12
A bound, in terms of its volume, for the number of vertices of a convex polyhedron when the vertices have integer coordinates
p. 13-15
Conditions for similarity to unitary and self-adjoint operators
p. 16-27
Infinite-dimensional classical groups of finite $r$-rank: Description of representations and asymptotic theory
p. 28-42
A cocycle for the symplectic first chern class and the maslov index
p. 43-48
Classification of nonsingular surfaces of degree $4$ in $\mathbb{RP}^3$ with respect to rigid isotopies
p. 49-56
Extensions of $J$-isometric and $J$-symmetric operators
p. 57-58
Geometrical properties of the space $\varphi(X,Y)$
p. 59-60
A bound for the rate of decrease of correlation in one-dimensional dynamical systems
p. 61-62
The grothendieck property in lorentz sequence spaces
p. 63-64
One-dimensional Schr\"odinger operator with accelerating potential
p. 65-66
Values at the positive integral points of the zeta-function of the hill operator with a finite-zone potential
p. 67-69
Asymptotic spectrum of nonquasihomogeneous polynomials
p. 70-71
G. Szeg\"o's limit theorem in the multidimensional case
p. 72-73
Polynomial covariants of the symmetric group and some of its analogs
p. 74-75
Kostant function of the root system $A_n$
p. 76-77
Serre duality for projective supermanifolds
p. 78-79
Representations of the Lie superalgebras $\mathfrak{gl}(n,m)$ and $Q(n)$ on the space of tensors
p. 80-81
Invariant elements in a modular lattice
p. 82-83
Some criteria for the existence of divisors of a holomorphic operator function
p. 84-85
Invariant subspaces and properties of the spectra of plus-operators with a quasifocusing power in a Krein space
p. 86-87
Discrete groups of reflections in the complex ball
p. 88-89
Focal set of a surface with boundary, and caustics of groups generated by reflections $B_k$, $C_k$, and $F_4$
p. 90-91