Title
Combinatorial Properties of the K3 Surface: Simplicial Blowups and Slicings.
Abstract
The 4-dimensional abstract Kummer variety K-4 with 16 nodes leads to the K3 surface by resolving the 16 singularities. Here we present a simplicial realization of this minimal resolution. Starting with a minimal 16-vertex triangulation of K-4, we resolve its 16 isolated singularities-step by step-by simplicial blowups. As a result we obtain a 17-vertex triangulation of the standard PL K3 surface. A key step is the construction of a triangulated version of the mapping cylinder of the Hopf map from real projective 3-space onto the 2-sphere with the minimum number of vertices. Moreover, we study simplicial Morse functions and the changes of their levels between the critical points. In this way we obtain slicings through the K3 surface of various topological types.
Year
DOI
Venue
2011
10.1080/10586458.2011.564546
EXPERIMENTAL MATHEMATICS
Keywords
Field
DocType
combinatorial manifold,combinatorial pseudomanifold,intersection form,K3 surface,Kummer variety,resolution of singularities,simplicial Hopf map
Topology,Combinatorics,Betti number,Simplicial approximation theorem,Mathematical analysis,Simplicial homology,Simplicial manifold,Simplicial complex,h-vector,Delta set,Abstract simplicial complex,Mathematics
Journal
Volume
Issue
ISSN
20.0
2.0
1058-6458
Citations 
PageRank 
References 
6
0.69
4
Authors
2
Name
Order
Citations
PageRank
Jonathan Spreer14711.46
Wolfgang Kühnel2285.29