Logarithmically regular morphisms
AbstractWe consider the stack $${\mathcal {L}}og_{X}$$ L o g X parametrizing log schemes over a log scheme X, and weak and strong properties of log morphisms via $${\mathcal {L}}og_{X}$$ L o g X , as defined by Olsson. We give a concrete combinatorial presentation of $${\mathcal {L}}og_{X}$$ L o g X , and prove a simple criterion of when weak and strong properties of log morphisms coincide. We then apply this result to the study of logarithmic regularity, derive its main properties, and give a chart criterion analogous to Kato’s chart criterion of logarithmic smoothness.
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1966 ◽
Vol 181
(1)
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pp. 144-174
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2010 ◽
Vol 19
(06)
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pp. 689-694
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2008 ◽
Vol 8
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pp. 3721-3759
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1992 ◽
Vol 111
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pp. 273-281
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