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More elementary components of the Hilbert scheme of points

Published 31 Jan 2021 in math.AG | (2102.00494v2)

Abstract: Let $K$ be an algebraically closed field of characteristic $0$, and let $H{\mu}$ denote the Hilbert scheme of $\mu$ points of the affine space $An$. An elementary component $E$ of $H{\mu}$ is an irreducible component such that every $K$-point $[I]$ $\in$ $E$ represents a length-$\mu$ closed subscheme Spec$(K[x_1,\dots,x_n]/I)$ $\subseteq$ $An$ that is supported at one point. In a previous article we found some new examples of elementary components; in this article, we simplify the methods and extend the range of the previous paper to find several more examples. In addition, we present a "plausibility test" that suggests the existence of a vast number of similar examples.

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