The Engel-Lutz twist and overtwisted Engel structures
英文摘要：
We introduce a modification procedure for Engel structures that is reminiscent of the Lutz twist in 3-dimensional Contact Topology. This notion allows us to define what an Engel overtwisted disc is, and to prove a complete h-principle for overtwisted Engel structures with fixed overtwisted disc.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
