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DB singularities deform
Du Bois singularities DB singularities deformation log canonical singularities non-lc ideal
2011/9/5
Abstract: Let $X$ be a variety and $H$ a Cartier divisor on $X$. We prove that if $H$ has Du Bois (or DB) singularities, then $X$ has Du Bois singularities near $H$. As a consequence, if $X \to S$ is ...