NEF DIVISORS ON M0,n FROM GIT
نویسندگان
چکیده
We introduce and study the GIT cone of M0,n, which is generated by the pullbacks of the natural ample line bundles on the GIT quotients (P)//SL(2). As one application, we prove unconditionally that the log canonical models of M0,n with a symmetric boundary divisor coincide with the moduli spaces of weighted curves or with the symmetric GIT quotient, extending the result of Matt Simpson.
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تاریخ انتشار 2008