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math.DG2026
A note on the cohomology of pullback Lie algebroids
Eckhard Meinrenken
We give a direct differential-geometric proof of a result of Crainic on the cohomology of pullbacks of Lie algebroids under surjective submersions: If the fibers are connected and…
math.DG2026
An introduction to weightings along submanifolds
Eckhard Meinrenken
This article is based on a talk given at the Ghent Geometric Analysis Seminar in 2023. We review basic notions from the theory of weightings along submanifolds, with special emphas…
math.SG2026
Symplectic geometry of projective structures on surfaces with boundary
Ahmadreza Khazaeipoul, Eckhard Meinrenken
For oriented surfaces with boundary, we consider the infinite-dimensional deformation space of projective structures on with nondegenerate boundary, up to isotopies fixing…