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Classification of Threefold ENC cDV Quotient Singularities

A combinatorial classification of three-dimensional exceptionally non-canonical compound Du Val cyclic quotient singularities, showing the cyclic index or defining weight vector lies in a finite set depending on one parameter, and deducing the ascending chain condition for minimal log discrepancies of such enc pairs.

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CLASSIFICATION OF THREEFOLD ENC CDV QUOTIENT SINGULARITIES JINGJUN HAN AND JIHAO LIU Abstract. We

A rough classification of three-dimensional exceptionally non-canonical (enc) compound Du Val (cDV) cyclic quotient singularities, carried out through combinatorial computations on the weights of the…