Geometric Genus Article Index for
Geometric
Website Links For
Geometric
 

Information About

Geometric Genus




H


then carries over to any base Field , when Ω is taken to be the sheaf of Kähler Differential s and the power is the (top) Exterior Power .

The definition of geometric genus is carried over classically to singular curves ''C'', by decreeing that

p


is the geometric genus of the Normalization ''C''′. That is, since the mapping

C


is Birational , the definition is extended by birational invariance.

The geometric genus is the first invariant ''p''''g'' = ''P1'' of a sequence of invariants ''Pn'' called the Plurigenera .


SEE ALSO