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D.10.1.2 NSplaces

Procedure from library brnoeth.lib (see brnoeth_lib).

Usage:
NSplaces( h, CURVE ), where h is an intvec and CURVE is a list

Return:
list L with updated data of CURVE after computing all non-singular affine closed places whose degrees are in the intvec h:
 
   in L[1][1]: (affine ring) lists Aff_Points(d) with affine non-singular
               (closed) points of degree d (if non-empty),
   in L[3]:    the newly computed closed places are added,
   in L[5]:    local rings created/updated to store (repres. of) new places.
See Adj_div for a description of the entries in L.

Note:
The list_expression should be the output of the procedure Adj_div.
Raising printlevel, additional comments are displayed (default: printlevel=0).

Warning:
The parameter of the needed field extensions is called 'a'. Thus, there should be no global object named 'a' when executing NSplaces.

Example:
 
See also: Adj_div; closed_points.


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