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The Tate Conjecture for a family of surfaces of general type with pg = q = 1 and K2 = 3
- American Journal of Mathematics
- Johns Hopkins University Press
- Volume 137, Number 2, April 2015
- pp. 281-311
- 10.1353/ajm.2015.0011
- Article
- Additional Information
We prove a big monodromy result for a smooth family of complex algebraic surfaces of general type, with
invariants $p_g=q=1$ and $K^2=3$, that has been introduced by Catanese and Ciliberto. This is accomplished
via a careful study of degenerations. As corollaries, when a surface in this family is defined over a finitely
generated extension of $\Bbb{Q}$, we verify the semisimplicity and Tate conjectures for the Galois representation on
the middle $\ell$-adic cohomology of the surface.