Abstract
For a compact Riemann surface $X$ of positive genus, the space of sections of a certain theta bundle on moduli of bundles of rank $r$ and level $k$ admits a natural map to (the dual of) a similar space of sections of rank $k$ and level $r$ (the strange duality isomorphism). Both sides of the isomorphism carry projective connections as $X$ varies in a family. We prove that this map is (projectively) flat.
Citation
Prakash Belkale. "Strange duality and the Hitchin/WZW connection." J. Differential Geom. 82 (2) 445 - 465, June 2009. https://doi.org/10.4310/jdg/1246888491
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