Abstract
We study a cylindrical Lagrangian cobordism group for Lagrangian torus fibres in symplectic manifolds which are the total spaces of smooth Lagrangian torus fibrations. We use ideas from family Floer theory and tropical geometry to obtain both obstructions to and constructions of cobordisms; in particular, we give examples of symplectic tori in which the cobordism group has no non-trivial cobordism relations between pairwise distinct fibres, and ones in which the degree zero fibre cobordism group is a divisible group. The results are independent of but motivated by mirror symmetry, and a relation to rational equivalence of 0-cycles on the mirror rigid analytic space.
| Original language | English |
|---|---|
| Pages (from-to) | N/A |
| Number of pages | 45 |
| Journal | Journal für die reine und angewandte Mathematik |
| Volume | N/A |
| Early online date | 7 Nov 2020 |
| DOIs | |
| Publication status | E-pub ahead of print - 7 Nov 2020 |
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Nick Sheridan
- School of Mathematics - Royal Society University Research Fellow
Person: Academic: Research Active