1995/11/24 by Yujiro Kawamata, Kawamata, Yujiro
Mathematics · #Algebraic Geometry (math.AG) #FOS: Mathematics #alg-geom #math.AG
paper · pdf · doi:10.48550/arxiv.alg-geom/9511015
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arxiv created 1995/11/24 · arxiv updated 2015/06/30
We obtain a formula which relates the log canonical divisor of the ambient space with that of a subvariety of codimension 2 by using Knudsen's moduli space of pointed stable curves of genus 0.