Abstract.
We shall give the best possible upper bound of the Fano indices together with a characterization of those -Fano 3-folds which attain the maximum in terms of graded rings.
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Suzuki, K. On Fano indices of -Fano 3-folds. manuscripta math. 114, 229–246 (2004). https://doi.org/10.1007/s00229-004-0442-4
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DOI: https://doi.org/10.1007/s00229-004-0442-4