On generically non-reduced components of Hilbert schemes of smooth curves

Autor: Ananyo Dan
Rok vydání: 2017
Předmět:
Zdroj: Mathematische Nachrichten. 290:2800-2814
ISSN: 0025-584X
DOI: 10.1002/mana.201600356
Popis: A classical example of Mumford gives a generically non-reduced component of the Hilbert scheme of smooth curves in P3 such that a general element of the component is contained in a smooth cubic surface in P3. In this article we use techniques from Hodge theory to give further examples of such (generically non-reduced) components of Hilbert schemes of smooth curves without any restriction on the degree of the surface containing it. As a byproduct we also obtain generically non-reduced components of certain Hodge loci.
Databáze: OpenAIRE