Irregularity of a surface
id:
irregularity-of-a-surface-257-10405951
title:
Irregularity of a surface
text:
In mathematics, the irregularity of a complex surface X is the Hodge number h 0 , 1 = dim H 1 ( O X ) , usually denoted by q. The irregularity of an algebraic surface is sometimes defined to be this Hodge number, and sometimes defined to be the dimension of the Picard variety, which is the same in characteristic 0 but can be smaller in positive characteristic. The name "irregularity" comes from the fact that for the first surfaces investigated in detail, the smooth complex surfaces in P3, the
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wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Irregularity_of_a_surface
date created:
date modified:
2021-11-08T19:24:45Z
main entity:
{"identifier":"Q15122156","url":"https://www.wikidata.org/entity/Q15122156"}
image:
fields total:
13
integrity:
13