next | previous | forward | backward | up | top | index | toc | Macaulay2 website
RelativeCanonicalResolution :: scrollDegrees

scrollDegrees -- Computes the degree of a section of a bundle on the scroll ring corresponding to a polynomial in the Cox ring



This function computes integers a and b such that $H^0(O_{P(E)}(aH+bR))$ corresponds to basis($\{a',b'\}$,Rcox), where Rcox is the Cox ring of the scroll $P(E)$.

See also

Ways to use scrollDegrees :

For the programmer

The object scrollDegrees is a method function.