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D.5.2.22 constructblwup
Procedure from library resbinomial.lib (see resbinomial_lib).
- Usage:
- constructblwup(blwhist,n,chy,flag);
blwhist, flag lists, n integer, chy ideal
- Return:
- the ideal defining the map K[W] --> K[Wi],
which gives the composition map of all the blowing up leading to this chart
- Note:
- NECESSARY START WITH COLUMNS
Example:
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