Changeset 5cd5026 in git
- Timestamp:
- Jul 6, 2007, 12:35:05 PM (16 years ago)
- Branches:
- (u'spielwiese', '0d6b7fcd9813a1ca1ed4220cfa2b104b97a0a003')
- Children:
- 12074fcc0581beb6c6809d2ebc8bf6c5962f5ddd
- Parents:
- 81cac2324e8331e0b38ee0703eeba8b2b66064ca
- File:
-
- 1 edited
Legend:
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Singular/LIB/sagbi.lib
r81cac2 r5cd5026 1 1 ////////////////////////////////////////////////////////////////////////////// 2 version="$Id: sagbi.lib,v 1. 9 2007-01-23 18:27:17Singular Exp $";2 version="$Id: sagbi.lib,v 1.10 2007-07-06 10:35:05 Singular Exp $"; 3 3 category="Commutative Algebra"; 4 4 info=" 5 LIBRARY: SAGBI.lib Compute Subalgebras bases Analogous to Groebner bases for ideals5 LIBRARY: sagbi.lib Compute Subalgebras bases Analogous to Groebner bases for ideals 6 6 AUTHORS: Gerhard Pfister, pfister@mathematik.uni-kl.de, 7 7 @* Anen Lakhal, alakhal@mathematik.uni-kl.de … … 42 42 int b=size(B); 43 43 44 45 44 //In quotient rings,SINGULAR does not reduce polynomials w.r.t the 46 45 //quotient ideal,therefore we should first 'reduce';if it is necessary for … … 88 87 //"kern" is the ideal of algebraic relations between 89 88 // lead(id[z]). 90 91 89 export kern,A;// we export: 92 90 // * the ideal A to avoid useless computations … … 94 92 // * the ideal kern : some times we can get intresting 95 93 // informations from this ideal. 96 97 94 setring bsr; 98 95 map phi=R1,vars,id; … … 133 130 } 134 131 135 136 132 /////////////////////////////////////////////////////////////////////////////// 137 133 static proc std1(ideal J,ideal I,list #) … … 143 139 int tt; 144 140 ideal Res,@result; 145 146 141 147 142 if(size(#)>0) {tt=#[1];} … … 201 196 202 197 //================create a new ring with extra variables============== 203 204 198 execute("ring R1=("+charstr(R)+"),("+varstr(R)+",@y((ii+1)..(ii+jj))),(dp(n),dp(kk+jj-n));"); 205 199 // *levandov: would it not be easier and better to use
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