In mathematics, a Brieskorn–Grothendieck resolution is a resolution conjectured by Alexander Grothendieck, that in particular gives a resolution of the universal deformation of a Kleinian singularity. Brieskorn (1971) announced the construction of this resolution, and Slodowy (1980) published the details of Brieskorn's construction.
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Brieskorn–Grothendieck resolution Wikipedia(Text) CC BY-SA