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WITHDRAWN: Exactness, integrality, and log modifications - MaRDI portal

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WITHDRAWN: Exactness, integrality, and log modifications

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Publication:6504873

arXivmath/9907124MaRDI QIDQ6504873

Author name not available (Why is that?)


Abstract: In this paper we discuss log blow-up's, introduced by Kazuya Kato, and define the concept of log modifications. Using this concept we prove that any morphism f: X ---> Y of locally noetherian fs log schemes with underlying structures of f and Y quasi-compact can be modified to an exact morphism, and moreover to an integral morphism. By a well-known fact on the underlying structure of an integral morphism this result can be considered as a weak log-version of flattening theorem by Raynaud and Gruson.












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