Universal limit linear series and descent of moduli spaces

Abstract

We introduce a formalism of descent of moduli spaces, and use it to produce limit linear series moduli spaces for families of curves in which the components of fibers may have monodromy. We then construct a universal stack of limit linear series over the stack of semistable curves of compact type, and produce new results on existence of real curves with few real linear series.

arXiv comment23 pages, journal reference added

Cited by in corpus (2)

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• Secant planes of a general curve via degenerations