Mathematical Research Letters

Volume 12 (2005)

Number 4

On $\lambda$-connections on a curve where $\lambda$ is a formal parameter

Pages: 551 – 565



Dima Arinkin (University of Chicago)


We study $\GL_2$-bundles with connections with a small parameter on a smooth projective curve. We describe an open subset in the moduli space of such bundles. The description degenerates into the Hitchin fibration as the parameter tends to zero.

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