Showing math.GTShow all
2 papers · 1 filter
math.GT2025
Contact surgery distance
Marc Kegel, Isacco Nonino, Monika Yadav
In this article, we define the contact surgery distance of two contact 3-manifolds and as the minimal number of contact surgeries needed to obtain from…
math.GT2025
Contact surgery numbers of projective spaces
Marc Kegel, Monika Yadav
We classify all contact projective spaces with contact surgery number one. In particular, this implies that there exist infinitely many non-isotopic contact structures on the real…