| Front matter | _ | 
            
              | Front matter | _ | 
            
              | Table of Contents | _ | 
            
              | Article: Cylinders in Riemann surfaces | 1 | 
            
              | Article: Courbure et singularités complexes. | 6 | 
            
              | Article: Über Extremalprobleme für schlichte Lösungen elliptischer Differentialgleichungssysteme. | 17 | 
            
              | Article: Bestimmung konvexer Körper durch Krümmungsmaße. | 42 | 
            
              | Article: Über Bahnen und deren Deformationen bei linearen Aktionen reduktiver Gruppen. | 61 | 
            
              | Article: The normality of closures of orbits in a Lie algebra. | 105 | 
            
              | Article: The invariance principle. | 111 | 
            
              | Article: Sur les Plongements du Type Déformation. | 126 | 
            
              | Article: Some properties of groups without the property P1. | 133 | 
            
              | Article: Non-smoothable varieties. | 140 | 
            
              | Article: A note on groups with torsion-free abelianization and trivial multiplicator. | 147 | 
            
              | Article: Ein Beitrag zur Whitney-Regularität im unendlichdimensionalen Fall. | 159 | 
            
              | Article: The values of sectional curvature in indefinite metrics. | 173 | 
            
              | Article: The Jenkins Strebel differentials with one cylinder are dense. | 179 | 
            
              | Article: Some rational computations of the Waldhausen algebraic K theory. | 185 | 
            
              | Article: Geometry of hypersurfaces and mapping theorems in Cn. | 199 | 
            
              | Article: A homological characterization of foliations consisting of minimal surfaces. | 218 | 
            
              | Article: Quelques notions simples en géométrie riemannienne et leurs applications aux feuilletages compacts. | 224 | 
            
              | Article: Group representations without groups. | 240 | 
            
              | Article: Funktionale von primitiven Polygonen Kleinscher Ebenen. | 288 | 
            
              | Article: Konvexe Polytope mit kongruenten regulären (n-1)- Seiten im Rn (n...4). | 304 | 
            
              | Article: On division by inner factors. | 309 | 
            
              | Article: Tresses, monodromie et le groupe symplectique. | 318 | 
            
              | Article: A Landesman-Lazer alternative theorem for a class of optimization problems. | 328 | 
            
              | Article: Simplicity of the projective unitary groups defined by simple factors. | 334 | 
            
              | Article: Concordance implies homotopy for classical links in M3. | 347 | 
            
              | Article: Classification of simple knots by Levine pairings. | 356 | 
            
              | Article: The Boolean algebra of spectra. | 368 | 
            
              | Article: Finitude du nombre des classes d'isomorphisme des structures isométriques entières. | 378 | 
            
              | Article: Area preserving twist homeomorphism of the annulus. | 397 | 
            
              | Article: A universal space for normal bundles of n-manifolds. | 405 | 
            
              | Article: Dichtepunkte im Spektrum Riemannscher Flächen. | 431 | 
            
              | Article: Abelian group extensions and the axiom of constructibility. | 440 | 
            
              | Article: Boundary regularity and the uniform convergence of quasiconformal mappings. | 458 | 
            
              | Article: Ueber den ersten Eigenwert des Laplace-Operators auf kompakten Flächen. | 477 | 
            
              | Article: Extremal eigenvalue problems defined on conformal classes of compact Riemannian manifolds. | 494 | 
            
              | Article: Sur le spectre des opérateurs elliptiques à bicaractéristiques toutes les périodiques. | 508 | 
            
              | Article: Exponential sums associated with algebraic number fields. | 523 | 
            
              | Article: Une famille infinie de noeuds fibrés cobordants à zero et ayant même polynôme d'Alexander. | 562 | 
            
              | Article: Some topological aspects of C* actions on compact Kaehler manifolds. | 567 | 
            
              | Article: On the number of solutions of linear equations in units of an algebraic number field. | 583 | 
            
              | Article: The secondary characteristic classes of parabolic foliations. | 601 | 
            
              | Article: Groups of finite quasi-projective dimension. | 615 | 
            
              | Article: On Mackey's Imprimitivity Theorem. | 629 | 
            
              | Article: Dirichlet regions in manifolds without conjugate points. | 642 | 
            
              | Article: Twisted Hopf Algebras. | 659 |