Home Online Manual
Top
Back: grzero
Forward: grtwists
FastBack:
FastForward:
Up: gradedModules_lib
Top: Singular Manual
Contents: Table of Contents
Index: Index
About: About this document

D.15.5.7 grtwist

Procedure from library gradedModules.lib (see gradedModules_lib).

Usage:
grtwist(a,d), int a, d

Return:
graded object representing S(d)^a

Purpose:
compute presentation of S(d)^a

Example:
 
LIB "gradedModules.lib";
ring r=32003,(x,y,z),dp;
//  grview(grpower( grshift(grzero(), 10), 5 ) );
grview( grtwist (5, 10) );
==> Graded homomorphism: r(10)^5 <- 0, given by zero (5 x 0) matrix.