Abstract
The main result is a boundedness theorem forn-complements on algebraic surfaces. In addition, this theorem is used in a classification of log Del Pezzo surfaces and birational contractions for threefolds.
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Translated from Itogi Nauki i Tekhniki, Seriya Sovremennaya Matematika i Ee Prilozheniya. Tematicheskie Obzory. Vol. 62, Algebraic Geometry-10, 1999.
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Shokurov, V.V. Complements on surfaces. J Math Sci 102, 3876–3932 (2000). https://doi.org/10.1007/BF02984106
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DOI: https://doi.org/10.1007/BF02984106