Some remarks on the volume of log varieties

In this note, using methods introduced by Hacon et al. ['Boundedness of varieties of log general type', Proceedings of Symposia in Pure Mathematics, Volume 97 (American Mathematical Society, Providence, RI, 2018) 309-348], we study the accumulation points of volumes of varieties of log general type. First, we show that if the set of boundary coefficients Λ satisfies the descending chain condition (DCC), is closed under limits and contains 1, then the corresponding set of volumes satisfies the DCC and is closed under limits. Then, we consider the case of Î-log canonical varieties, for 0 < ϵ < 1. In this situation, we prove that if Λ is finite, then the corresponding set of volumes is discrete.

Duke Scholars

Author Stefano Filipazzi Mathematics