Duke Mathematical Journal
- Duke Math. J.
- Volume 122, Number 1 (2004), 1-49.
Finiteness and quasi-simplicity for symmetric -surfaces
We compare the smooth and deformation equivalence of actions of finite groups on -surfaces by holomorphic and antiholomorphic transformations. We prove that the number of deformation classes is finite and, in a number of cases, establish the expected coincidence of the two equivalence relations. More precisely, in these cases we show that an action is determined by the induced action in the homology. On the other hand, we construct two examples to show first that, in general, the homological type of an action does not even determine its topological type, and second that -surfaces and with the same Klein action do not need to be equivariantly deformation equivalent even if the induced action on is real, that is, reduces to multiplication by .
Duke Math. J., Volume 122, Number 1 (2004), 1-49.
First available in Project Euclid: 24 March 2004
Permanent link to this document
Digital Object Identifier
Mathematical Reviews number (MathSciNet)
Zentralblatt MATH identifier
Primary: 14J28: $K3$ surfaces and Enriques surfaces 14J50: Automorphisms of surfaces and higher-dimensional varieties
Secondary: 14P25: Topology of real algebraic varieties 32G05: Deformations of complex structures [See also 13D10, 16S80, 58H10, 58H15] 57S17: Finite transformation groups
Degtyarev, Alex; Itenberg, Ilia; Kharlamov, Viatcheslav. Finiteness and quasi-simplicity for symmetric $K3$ -surfaces. Duke Math. J. 122 (2004), no. 1, 1--49. doi:10.1215/S0012-7094-04-12211-8. https://projecteuclid.org/euclid.dmj/1080137201