  Notes for a short lecture series, covering exploded manifolds, the moduli
stack of curves in exploded manifolds, and a tropical gluing formula for
Gromov-Witten invariants: a gluing formula providing a degeneration formula for
Gromov-Witten invariants in normal-crossing degenerations. I gave the original
lecture series in April 2016 at the Simons Center for Geometry and Physics at
Stonybrook. Video of the lectures is available on the SCGP website,
http://scgp.stonybrook.edu/video_portal/video.php?id=2595
