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Commentarii Mathematici Helvetici

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