Video Lectures

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To show that the Gamma function, restricted to the positive real half-axis, generates an o-minimal structure over the real field, we had to show (in collaboration with Lou van den Dries) that the expansion of the real field by all functions that are...

The classical Rees construction (of common use in commutative algebra and Hodge theory) interpolates between filtrations, viewed as Gm

-equivariant vector bundles on the affine line, and their associated gradings. Various non-abelian versions have...