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5.1.63 kernel

Syntax:
kernel ( ring_name, map_name )
preimage ( ring_name, ideal_expression )
Type:
ideal
Purpose:
returns the kernel of a given map.
The second argument has to be a map from the basering to the given ring (or an ideal defining such a map).
Example:
 
See alg_kernel; hom_kernel; ideal; map; modulo; preimage; ring.

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