next | previous | forward | backward | up | top | index | toc | Macaulay2 web site
K3Carpets :: carpetDet

carpetDet -- compute the determinant of the crucial constant strand of a carpet X(a,b)

Synopsis

Description

We compute nonminimal resolution F of the carpet of type (a,b) over a finite prime field, Lift this to a resolution over ZZ, introduce the fine grading, grep the various blocks of the crucial map in the a-th strand, compute their determinants and return their product.

a=4,b=4
d=carpetDet(a,b)
factor d

See also

Ways to use carpetDet :