Dedekind sums, ..-invariants and the signature cocycle.
Die vierte Dimension.
Donaldson invariants of certain symplectic manifolds.
Donaldson series and (-1)-tori.
Dotted links, Heegaard diagrams, and colored graphs for PL 4-manifolds.
The present paper is devoted to establish a connection between the 4-manifold representation method by dotted framed links (or -in the closed case- by Heegaard diagrams) and the so called crystallization theory, which visualizes general PL-manifolds by means of edge-colored graphs.In particular, it is possible to obtain a crystallization of a closed 4-manifold M4 starting from a Heegaard diagram (#m(S1 x S2),ω) and the algorithmicity of the whole process depends on the effective possibility of recognizing...
Eine Kongruenz für Gitter und ihre Anwendung auf 2k-Mannigfaltigkeiten in 4k-Mannigfaltigkeiten.
Einstein metrics and smooth structures.
Equivalence classes of Fields of 2-planes and two kinds of almost complex structures on compact four-dimensional manifolds.
Equivariant Floer groups for binary polyhedral spaces.
Existence of foliations on 4-manifolds.
Exotic structures on 4-manifolds detected by spectral invariants.
Exponential separation in 4-manifolds.
Fields of 2-Planes on Compact Simply-Connected Smooth 4-Manifolds.
Formes bilinéaires symétriques entières à discriminant ± 1
Generalized symplectic rational blowdowns.
Grafting Seiberg-Witten monopoles.
Group Actions on the Chern Manifold.
Harmonic morphisms and circle actions on 3- and 4-manifolds
Harmonic morphisms are considered as a natural generalization of the analytic functions of Riemann surface theory. It is shown that any closed analytic 3-manifold supporting a non-constant harmonic morphism into a Riemann surface must be a Seifert fibre space. Harmonic morphisms from a closed 4-manifold to a 3-manifold are studied. These determine a locally smooth circle action on with possible fixed points. This restricts the topology of . In all cases, a harmonic morphism from a closed...
h-cobordisms between 1-connected 4-manifolds.
Higher order intersection numbers of 2-spheres in 4-manifolds.