Sur un théorème de connexité de Mumford pour les espaces homogènes |
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Authors: | Olivier Debarre |
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Affiliation: | (1) IRMA-Mathématique-CNRS URA 001, Université Louis Pasteur, 7, rue René Descartes, 67084 Strasbourg Cédex, France |
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Abstract: | We prove some consequences of an old unpublished connectivity result of Mumford. These mostly deal with the fundamental group of some (ramified) coverings of homogeneous spaces; for example, it is shown that the fundamental group of a complex projective irreducible normal variety which is a covering of a simple (in the sense of 2.2) homogeneous space V, of degree ≤dim (V), is isomorphic to π1 (V). |
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