Аннотация:
We classify Fano threefolds with only Gorenstein terminal singularities and Picard number greater than 1, satisfying 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.
The work was partially supported by the grant RFBR Nos. 11-01-00336-a, 11-01-92613-KO_a, Leading Scientific Schools No. 4713.2010.1, and AG Laboratory HSE RF government grant ag. 11.G34.31.0023.
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