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D.4.7.19 tensorMod

Procedure from library homolog.lib (see homolog_lib).

Usage:
tensorMod(M,N); M,N modules

Compute:
presentation matrix A of the tensor product T of the modules M'=coker(M), N'=coker(N): if matrix(M) defines a map M: R^r-->R^s and matrix(N) defines a map N: R^p-->R^q, then A defines a presentation
 
         R^(sp+rq) --A-> R^(sq)  --> T --> 0 .

Return:
matrix A satisfying coker(A) = tensorprod(coker(M),coker(N)) .

Example:
 


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            User manual for Singular version 3-1-6, Dec 2012, generated by texi2html.