Flattening stratification and the stack of partial stabilizations of prestable curves
نویسنده
چکیده
We describe the stack of partial stabilizations of prestable curves. We use this description to obtain examples of proper morphisms of schemes having no flattening stratification and to obtain results on the existence of global quotient stack presentations in the setting of moduli stack of prestable curves of genus 0 DOI: https://doi.org/10.1112/blms/bds066 Posted at the Zurich Open Repository and Archive, University of Zurich ZORA URL: https://doi.org/10.5167/uzh-86027 Published Version Originally published at: Kresch, Andrew (2013). Flattening stratification and the stack of partial stabilizations of prestable curves. Bulletin of the London Mathematical Society, 45(1):93-102. DOI: https://doi.org/10.1112/blms/bds066 Bull. London Math. Soc. 45 (2013) 93–102 C 2012 London Mathematical Society doi:10.1112/blms/bds066 Flattening stratification and the stack of partial stabilizations of prestable curves
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Equivariant Versal Deformations of Semistable Curves
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