Branched coverings of $CP^2$ and other basic 4-manifolds

Autor:	Piergallini, Riccardo, Zuddas, Daniele
Rok vydání:	2017
Předmět:	Mathematics - Geometric Topology 57M12 57K40 57K45
Druh dokumentu:	Working Paper
DOI:	10.1112/blms.12463
Popis:	We give necessary and sufficient conditions for a 4-manifold to be a branched covering of $CP^2$, $S^2\times S^2$, $S^2 \mathbin{\tilde\times} S^2$ and $S^3 \times S^1$, which are expressed in terms of the Betti numbers and the intersection form of the 4-manifold. Comment: 18 pages, 1 figure, 29 references
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1707.03667 Zobrazit plný text záznamu View this record from Arxiv