Topology through the centuries: Low dimensional manifolds

Topology of 4-Manifolds

Regina is a software package for 3-manifold and 4-manifold topologists, with a For 4-manifolds, it offers a range of combinatorial and algebraic tools, plus  CURVATURE AND SMOOTH TOPOLOGY IN ... - EMIS geometry and smooth topology in dimension four. In particular simply connected, non-spin 4-manifolds which do not admit positive-scalar-curvature metrics. [Topology and Geometry Seminar] “Trisections of 4-manifolds ... 31 Jan 2018 The seminar aims to introduce research topics in topology, geometry and its interactions with other sciences. Anyone interested in mathematics  Kirby Calculus

DIFFEOMORPHISMS OF 4-MANIFOLDS Recent advances in ... DIFFEOMORPHISMS OF 4-MANIFOLDS. C. T. C. WALL. Recent advances in differential topology (due notably to S. Smale) have mainly referred to manifolds of  Six Lectures on Four 4-Manifolds - matcuer - unam and symplectic 4-dimensional manifolds and the discovery of effective surgical also known that for n > 2 there exist infinitely many topological manifolds that. On the topology of Symplectic Calabi-Yau 4-manifolds - Uni ...

INTERSECTION FORMS, FUNDAMENTAL GROUPS AND 4 ...

Regina is a software package for 3-manifold and 4-manifold topologists, with a For 4-manifolds, it offers a range of combinatorial and algebraic tools, plus 

Regina - Software for low-dimensional topology Regina is a software package for 3-manifold and 4-manifold topologists, with a For 4-manifolds, it offers a range of combinatorial and algebraic tools, plus  CURVATURE AND SMOOTH TOPOLOGY IN ... - EMIS geometry and smooth topology in dimension four. In particular simply connected, non-spin 4-manifolds which do not admit positive-scalar-curvature metrics. [Topology and Geometry Seminar] “Trisections of 4-manifolds ... 31 Jan 2018 The seminar aims to introduce research topics in topology, geometry and its interactions with other sciences. Anyone interested in mathematics  Kirby Calculus

Classification of contractible 4-manifolds - Mathematics Stack ... 11 Feb 2019 If you work in topological category and assume that your manifolds are compact then any two compact contractible 4-manifolds W1,W2 with  Regina - Software for low-dimensional topology Regina is a software package for 3-manifold and 4-manifold topologists, with a For 4-manifolds, it offers a range of combinatorial and algebraic tools, plus