WorldCat Identities

Chowdhury, Atoshi

Works: 1 works in 1 publications in 1 language and 1 library holdings
Roles: Author
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Most widely held works by Atoshi Chowdhury
Compactifying picard stacks over degenerations of surfaces by Atoshi Chowdhury( )

1 edition published in 2012 in English and held by 1 WorldCat member library worldwide

Moduli spaces of smooth varieties can be partially compactified by the addition of a boundary parametrizing reducible varieties. We address the question of partially compactifying the universal Picard stack (the moduli space of line bundles) over a moduli space of smooth varieties by extending it over such a partial compactification. We present a stability condition for line bundles on reducible varieties and use it to specify what boundary points should be added to the universal Picard stack to obtain a proper moduli space. Over surfaces with exactly two irreducible components, we give specific results on enumerating stable line bundles, which support the conjecture that these are the right boundary points to add. This generalizes work of Caporaso and others in the 1990s on compactifying the universal Picard variety over the moduli space of curves
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  Kids General Special  
Audience level: 0.81 (from 0.81 for Compactify ... to 0.81 for Compactify ...)

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