genus(Ring) -- arithmetic genus

Synopsis

• Function: genus
• Usage:
genus R
• Inputs:
• Outputs:

Description

Computes the arithmetic genus of the projective scheme V with homogeneous coordinate ring R
 i1 : R = QQ[x,y,z]/ideal(y^2*z-x^3) o1 = R o1 : QuotientRing i2 : genus R o2 = 1