On certain K-equivalent birational maps
classification
🧮 math.AG
keywords
mapsbirationalflopflopsk-equivalentmukaistandardtwisted
read the original abstract
We study K-equivalent birational maps which are resolved by a single blowup. Examples of such maps include standard flops and twisted Mukai flops. We give a criterion for such maps to be a standard flop or a twisted Mukai flop. As an application, we classify all such birational maps up to dimension 5.
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