ETH Zurich

E-Periodica Schweizer Zeitschriften online. Revues suisses en ligne. Swiss journals online.

Journal
Volume 65 (1990)
Front matter _
Front matter _
Table of Contents _
Article: On the periodic spectrum of the 1-dimensional Schrödinger operator. 1
Article: Normal forms for Hamiltonian systems with Poisson commuting integrals - elliptic case. 4
Article: L2 - Curvature pinching. 36
Article: The Gauss map of a spacelike constant mean curvature hypersurface of Minkowski space. 52
Article: Casson invariant of links of singularities. 58
Article: Mean curvature functions of codimension-one foliations. 79
Article: On the genus of represenattion spheres. 85
Article: On the nodal lines of second eigenfunctions of the fixed membrane problem. 96
Article: Representation of links by braids: A new algorithm. 104
Article: A directional compactification of the complex Bloch variety. 114
Article: Rigidity for surfaces of non-positive curvature. 150
Article: Polynomial algebras over the Steenrod algebra. 171
Article: The monodromy of a series of hypersurface singularities. 181
Article: Intersection homology Poincaré spaces and the characteristic variety theorem. 198
Article: A generalization of Nehari's univalence criterion. 234
Article: Amalgamated products and finitely presented groups. 243
Article: The maximum principle at infinity for minimal surfaces in flat three manifolds. 255
Article: Positive scalar curvature and periodic fundamental groups. 271
Article: Multiple fibres of a morphism. 287
Article: Some examples of higher rank manifolds of nonnegative curvature. 299
Article: Formal groups and L-series. 318
Article: Sur les longueurs des géodésiques dùne métrique à courbure négative dans le disque. 334
Article: Complex singularities and the framed cobordism class of compact quotients of 3-dimensional Lie groups by discrete subgroups. 349
Article: On the algebraic hull of an automorphism group of a principal bundle. 375
Article: Locally flat 2-spheres in simply connected 4-manifolds. 388
Article: An obstruction for smoothing of Gorenstein surface singularities. 413
Article: A calculation of Pin+ Bordism groups. 434
Article: A relationship between volume, injectivity radius, and eigenvalues. 448
Article: On group homomorphisms including mod-p cohomology isomorphisms. 454
Article: About a problem of Ulam concerning flat sections of manifolds. 462
Article: Smooth algebras and vanishing of Hochschild homology. 474
Article: A priori bounds of Castelnuovo type for cohomological Hilbert functions. 478
Article: Geometric actions of surface groups on ...-trees. 519
Article: Fixed point free low dimensional real algebraic actions of A5 on contractible varieties. 534
Article: Baumslag-Solitar groups and some other groups of cohomological dimension two. 547
Article: Witt group of hyperelliptic curves. 559
Article: Classes caractéristiques pour les cônes projectifs et homologie d'intersection. 581
Article: Small eigenvalues on Y-pieces and on Riemann surfaces. 603
Article: Rational category of the space of sections of a nilpotent bundle. 615
Article: Une structure symplectique sur R6 avec une sphère lagrangienne plongée et un champ de Liouville complet. 623
Article: On small eigenvalues of the Laplacian for ...(q)\... . 664
Article: Asymptotically commuting families of operators. 672