来源:International Mathematics Research Notices, 2011, (18): 4089-4104.
DOI:10.1093/imrn/rnq246
摘要
We give here an explicit example of an algebraic family of foliations of CP(2) which is topologically trivial but not analytically trivial. This example underlines the necessity of some assumptions in Y. Ilyashenko's rigidity theorem.