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arXiv 1803.04545math.AG
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Coverings of rational ruled normal surfaces

Enrique Artal Bartolo, José Ignacio Cogolludo-Agustín, Jorge Martín-Morales

英文摘要:

In this work we use arithmetic, geometric, and combinatorial techniques to compute the cohomology of Weil divisors of a special class of normal surfaces, the so-called rational ruled toric surfaces. These computations are used to study the topology of cyclic coverings of such surfaces ramified along Q-normal crossing divisors.

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