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University of Sydney Algebra Seminar

William Donovan

Friday 23 September, 12-1pm, Place: Zoom

Homological comparison of resolution and smoothing

A singular space often comes equipped with (1) a resolution, given by a morphism from a smooth space, and (2) a smoothing, namely a deformation with smooth generic fibre. I will discuss work in progress on how these may be related homologically, starting with the threefold ordinary double point as a key example.