English

Bloch's conjecture for surfaces with involutions and of geometric genus zero

Algebraic Geometry 2017-07-05 v3

Abstract

Let SS be a smooth projective surface with pg=0p_g=0, let ι\iota be a regular involution acting on SS, and let WW be the resolution of singularities of the quotient surface S/ιS/\iota . In the paper we prove that Bloch's conjecture holds for the surface SS if and only if it holds for the surface WW. This yields Bloch's conjecture for all surfaces SS whenever the same conjecture is true for the desingularized quotient WW. In particular, Bloch's conjecture holds true for all numerical Godeaux surfaces with involutions, a "half" of Campedelli surfaces with involutions, the surface of Craighero and Gattazzo, some Catanese surfaces and other examples. Applying the same method to K3K3-surfaces, we prove that if a K3K3-surface SS admits a regular involution whose quotient is of Enriques type, then the motive M(S)M(S) is finite-dimensional.

Keywords

Cite

@article{arxiv.1704.04187,
  title  = {Bloch's conjecture for surfaces with involutions and of geometric genus zero},
  author = {Vladimir Guletskii},
  journal= {arXiv preprint arXiv:1704.04187},
  year   = {2017}
}

Comments

The paper has been withdrawn due to a crucial misconception about the monodromy argument used in the proofs of the main theorems