Pseudo-automorphisms with no invariant foliation
classification
🧮 math.DS
keywords
birationalfoliationinvariantanswercoincideconstructdegreesdevelop
read the original abstract
We construct an example of a birational transformation of a rational threefold for which the first and second dynamical degrees coincide and are $>1$, but which does not preserve any holomorphic (singular) foliation. In particular, this provides a negative answer to a question of Guedj. On our way, we develop several techniques to study foliations which are invariant under birational transformations.
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