7 citations · 24 across the 5 of their papers we have counts for
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math.SG2017★ 7 cited
The Engel-Lutz twist and overtwisted Engel structures
Álvaro del Pino, Thomas Vogel
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 ov…
math.SG2017★ 6 cited
Loose Engel structures
Roger Casals, Álvaro del Pino, Francisco Presas
This article introduces the notion of a loose family of Engel structures and shows that two such families are Engel homotopic if and only if they are formally homotopic. This impli…