Top
Back: printHom
Forward: sRes
FastBack:
FastForward:
Up: modules_lib
Top: Singular Manual
Contents: Table of Contents
Index: Index
About: About this document

D.4.17.13 mRes

Procedure from library modules.lib (see modules_lib).

Usage:
mRes(M,n); M Module or Ideal, n integer

Return:
Resolution, minimized resolution with graded modules

Note:
n is optional, if n ist positiv only that many steps will be computed use R.dd[i]; to return the different modules as image of matrices, R Resolution i integer EXAMPLE. example mRes, shows an example

Example:
 
LIB "modules.lib";
ring r;
matrix m[1][3]=x,y,z;
Matrix M=m;
Module N=coker(M);
N;
==> cokernel | x y z |
==> 
==> 
Resolution R = mRes(N);
R;
==>  1      3      3      1      
==> r <--  r <--  r <--  r
==> 
==> 0      1      2      3      
==> 
==> 
R.dd[2];
==>      {2}  {2}  {2}
==> {1}    y    x    0
==> {1}   -z    0    x
==> {1}    0   -z   -y
==> 


Top Back: printHom Forward: sRes FastBack: FastForward: Up: modules_lib Top: Singular Manual Contents: Table of Contents Index: Index About: About this document
            User manual for Singular version 4.3.2, 2023, generated by texi2html.