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arxiv: math/0205272 · v1 · pith:WCGF4JCAnew · submitted 2002-05-26 · 🧮 math.AG · math.AT

The fundamental group of a Galois cover of CP¹ X T

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keywords groupcoverfundamentalgaloisalgorithmbraidcalculationscomplex
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Let T be the complex projective torus, and X the surface CP^1 X T. Let X_Gal be its Galois cover with respect to a generic projection to CP^2. In this paper we compute the fundamental group of X_Gal, using the degeneration and regeneration techniques, the Moishezon-Teicher braid monodromy algorithm and group calculations. We show that pi_1(X_Gal) = Z^10.

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