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arXiv:1712.03558 [math.AG]AbstractReferencesReviewsResources

On the rationality of the singularities of the $A_2$-loci

Natalia Kolokolnikova

Published 2017-12-10Version 1

The rationality of the singularities of the $A_n$-loci is the natural question that arises in the papers devoted to the study of the Thom polynomials and $K$-theoretic invariants of the said loci. In this paper we prove that, in general, the $A_2$-loci have singularities worse than rational, and therefore they can not be presented as a GIT quotient of a smooth variety with respect to a reductive group.

Categories: math.AG, math.AT
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