Smoothly non-isotopic Lagrangian disk fillings of Legendrian knots
published by Youlin Li
in 2019
and research's language is
English
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Abstract in English
In this paper, we construct the first families of distinct Lagrangian ribbon disks in the standard symplectic 4-ball which have the same boundary Legendrian knots, and are not smoothly isotopic or have non-homeomorphic exteriors.