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Regular version of the site

Article

G-Fano threefolds, I

Advances in Geometry. 2013. Vol. 13. No. 3. P. 389-418.

We classify Fano threefolds with only terminal singularities whose canonical class is
Cartier and divisible by 2 with the additional assumption that the G-invariant part of the Weil divisor
class group is of rank 1 with respect to an action of some group G. In particular, we find a lot of
examples of Fano 3-folds with “many” symmetries.