Top
Back: ncExt_R
Forward: coHom
FastBack: purityfiltration_lib
FastForward: ratgb_lib
Up: nchomolog_lib
Top: Singular Manual
Contents: Table of Contents
Index: Index
About: About this document
7.7.17.0. ncHom
Procedure from library nchomolog.lib (see nchomolog_lib).

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

Compute:
A presentation of Hom(M',N'), M'=coker(M), N'=coker(N)

Assume:
M' is a left module, N' is a centralizing bimodule

Note:
ncHom(M,N) is a right module, hence a right presentation matrix is returned

Example:
 


Top Back: ncExt_R Forward: coHom FastBack: purityfiltration_lib FastForward: ratgb_lib Up: nchomolog_lib Top: Singular Manual Contents: Table of Contents Index: Index About: About this document
            User manual for Singular version 3-1-6, Dec 2012, generated by texi2html.