On smooth Fano threefolds with coregularity zero

Abstract

We provide examples of smooth three-dimensional Fano complete intersections of dergee 2, 4, 6, and 8 that have coregularity 0. Considering the main theorem of arXiv:2309.16784 on the remaining 101 families of smooth Fano threefolds, our result implies that each family of smooth Fano threefolds has an element of coregularity zero.