Volume 17, issue 3 (2013)

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A nonboundary nef divisor on $\overkern41{M}_{0,12}$

Aaron Pixton

Geometry & Topology 17 (2013) 1317–1324
Abstract

We describe a nef divisor ${D}_{\mathsc{P}}$ on ${\overline{M}}_{0,12}$ that is not numerically equivalent to an effective sum of boundary divisors.

Keywords
moduli of curves, nef cone
Primary: 14H10