GIT of complete intersections and log canonical thresholds

Abstract

We establish a link between the GIT stability of complete intersections of same degree hypersurfaces in the same ambient projective space, which can be parametrised as tuples in a Grassmanian scheme, and the log canonical thresholds of hypersurfaces contained in these tuples. We also establish a similar link in the case of Variations of GIT quotients, where we consider tuples of complete intersections and distinct hyperplanes.

arXiv comment10 pages. Comments very welcome. arXiv admin note: text overlap with arXiv:2212.09332