Tomohiro Okuma , Kei-ichi Watanabe , Ken-ichi Yoshida
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Gorensteinness for normal tangent cones of elliptic ideals
Let A be a two-dimensional excellent normal Gorenstein local domain. In this paper, we characterize elliptic ideals for its normal tangent cone to be Gorenstein. Moreover, we classify all those ideals in a Gorenstein elliptic singularity in the characteristic zero case.
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