version 1.11, 2003/08/21 02:30:23 |
version 1.15, 2003/08/26 05:52:43 |
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/* $OpenXM: OpenXM/src/kan96xx/Kan/ecart.c,v 1.10 2003/08/20 05:18:35 takayama Exp $ */ |
/* $OpenXM: OpenXM/src/kan96xx/Kan/ecart.c,v 1.14 2003/08/26 05:06:01 takayama Exp $ */ |
#include <stdio.h> |
#include <stdio.h> |
#include "datatype.h" |
#include "datatype.h" |
#include "extern2.h" |
#include "extern2.h" |
Line 248 POLY reduction_ecart(r,gset,needSyz,syzp) |
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Line 248 POLY reduction_ecart(r,gset,needSyz,syzp) |
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struct syz0 *syzp; /* set */ |
struct syz0 *syzp; /* set */ |
{ |
{ |
POLY rn; |
POLY rn; |
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if (TraceLift && needSyz) { |
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warningGradedSet("TraceLift cannot be used to get syzygy. TraceLift is turned off.\n"); |
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TraceLift = 0; |
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} |
if (TraceLift) { |
if (TraceLift) { |
if (EcartAutomaticHomogenization) { |
if (EcartAutomaticHomogenization) { |
if (TraceLift_ringmod == NULL) { |
if (TraceLift_ringmod == NULL) { |
warningPoly("reduction_ecart: TraceLift_ringmod is not set.\n"); |
warningPoly("reduction_ecart: TraceLift_ringmod is not set.\n"); |
return reduction_ecart1(r,gset,needSyz,syzp); |
return reduction_ecart1(r,gset,needSyz,syzp); |
} |
} |
rn = reduction_ecart1_mod(r,gset); /* BUG: syzygy is not obtained. */ |
rn = reduction_ecart1_mod(r,gset); |
if (rn == POLYNULL) return rn; |
if (rn == POLYNULL) return rn; |
else return reduction_ecart1(r,gset,needSyz,syzp); |
else return reduction_ecart1(r,gset,needSyz,syzp); |
}else{ |
}else{ |
Line 293 static POLY reduction_ecart0(r,gset,needSyz,syzp) |
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Line 297 static POLY reduction_ecart0(r,gset,needSyz,syzp) |
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POLY cf_o; |
POLY cf_o; |
POLY syz_o; |
POLY syz_o; |
POLY r_0; |
POLY r_0; |
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int se; |
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struct coeff *cont; |
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extern struct ring *CurrentRingp; |
extern struct ring *CurrentRingp; |
struct ring *rp; |
struct ring *rp; |
Line 312 static POLY reduction_ecart0(r,gset,needSyz,syzp) |
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Line 318 static POLY reduction_ecart0(r,gset,needSyz,syzp) |
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} |
} |
} |
} |
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if (DoCancel && (r != POLYNULL)) shouldReduceContent(r,1); |
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if (DebugReductionEcart&1) printf("--------------------------------------\n"); |
if (DebugReductionEcart&1) printf("--------------------------------------\n"); |
do { |
do { |
if (DebugReductionRed) printf("r=%s\n",POLYToString(r,'*',1)); |
if (DebugReductionRed) printf("r=%s\n",POLYToString(r,'*',1)); |
Line 335 static POLY reduction_ecart0(r,gset,needSyz,syzp) |
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Line 343 static POLY reduction_ecart0(r,gset,needSyz,syzp) |
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} |
} |
if (ell > 0) r = mpMult(cxx(1,0,ell,rp),r); /* r = s^ell r */ |
if (ell > 0) r = mpMult(cxx(1,0,ell,rp),r); /* r = s^ell r */ |
r = (*reduction1)(r,pp,needSyz,&cc,&cg); |
r = (*reduction1)(r,pp,needSyz,&cc,&cg); |
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if (DoCancel && (r != POLYNULL)) { |
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if (shouldReduceContent(r,0)) { |
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r = reduceContentOfPoly(r,&cont); |
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shouldReduceContent(r,1); |
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if (DebugReductionEcart || DebugReductionRed || DebugContentReduction) printf("CONT=%s ",coeffToString(cont)); |
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} |
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} |
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if (needSyz) { |
if (needSyz) { |
if (ells.first) { |
if (ells.first) { |
if (ell >0) cc = ppMult(cc,cxx(1,0,ell,rp)); |
if (ell >0) cc = ppMult(cc,cxx(1,0,ell,rp)); |
Line 364 static POLY reduction_ecart0(r,gset,needSyz,syzp) |
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Line 382 static POLY reduction_ecart0(r,gset,needSyz,syzp) |
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} |
} |
} |
} |
if (r ISZERO) goto ss; |
if (r ISZERO) goto ss; |
/*r = ecartDivideSv(r,&se); r = r/s^? Don't do this. */ |
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/* r = r/s^? Don't do this?? */ |
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r = ecartDivideSv(r,&se); |
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if (needSyz && (se > 0)) { |
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POLY tt; |
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tt = cxx(1,0,-se,rp); |
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cf = mpMult(tt,cf); |
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syz = cpMult(toSyzCoeff(tt),syz); |
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} |
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} |
} |
}while (ell >= 0); |
}while (ell >= 0); |
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Line 374 static POLY reduction_ecart0(r,gset,needSyz,syzp) |
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Line 401 static POLY reduction_ecart0(r,gset,needSyz,syzp) |
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syzp->syz = syz; /* syz is in the SyzRingp */ |
syzp->syz = syz; /* syz is in the SyzRingp */ |
} |
} |
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if (DoCancel && (r != POLYNULL)) { |
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if (r->m->ringp->p == 0) { |
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r = reduceContentOfPoly(r,&cont); |
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if (DebugReductionEcart || DebugReductionRed || DebugContentReduction) printf("cont=%s ",coeffToString(cont)); |
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} |
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} |
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return(r); |
return(r); |
} |
} |
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Line 400 static POLY reduction_ecart1(r,gset,needSyz,syzp) |
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Line 434 static POLY reduction_ecart1(r,gset,needSyz,syzp) |
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struct ecartPolyArray *gg; |
struct ecartPolyArray *gg; |
POLY pp; |
POLY pp; |
int ell; |
int ell; |
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POLY cf_o; |
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POLY syz_o; |
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POLY r_0; |
int se; |
int se; |
struct coeff *cont; |
struct coeff *cont; |
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Line 407 static POLY reduction_ecart1(r,gset,needSyz,syzp) |
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Line 444 static POLY reduction_ecart1(r,gset,needSyz,syzp) |
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struct ring *rp; |
struct ring *rp; |
extern struct ring *SmallRingp; |
extern struct ring *SmallRingp; |
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r_0 = r; |
gg = NULL; |
gg = NULL; |
if (needSyz) { |
if (needSyz) { |
if (r ISZERO) { rp = CurrentRingp; } else { rp = r->m->ringp; } |
if (r ISZERO) { rp = CurrentRingp; } else { rp = r->m->ringp; } |
Line 434 static POLY reduction_ecart1(r,gset,needSyz,syzp) |
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Line 472 static POLY reduction_ecart1(r,gset,needSyz,syzp) |
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ell = ells.ell; |
ell = ells.ell; |
if (ell > 0) { |
if (ell > 0) { |
if (DebugReductionEcart & 2) printf("%"); |
if (DebugReductionEcart & 2) printf("%"); |
gg = ecartPutPolyInG(r,gg,POLYNULL,POLYNULL); |
if (needSyz) { |
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gg = ecartPutPolyInG(r,gg,cf,syz); |
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}else{ |
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gg = ecartPutPolyInG(r,gg,POLYNULL,POLYNULL); |
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} |
} |
} |
if (ell >= 0) { |
if (ell >= 0) { |
if (ells.first) { |
if (ells.first) { |
Line 446 static POLY reduction_ecart1(r,gset,needSyz,syzp) |
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Line 488 static POLY reduction_ecart1(r,gset,needSyz,syzp) |
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if (ell > 0) r = mpMult(cxx(1,0,ell,rp),r); /* r = s^ell r */ |
if (ell > 0) r = mpMult(cxx(1,0,ell,rp),r); /* r = s^ell r */ |
r = (*reduction1)(r,pp,needSyz,&cc,&cg); |
r = (*reduction1)(r,pp,needSyz,&cc,&cg); |
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if (DoCancel && (r != POLYNULL)) { /* BUG: syzygy should be corrected. */ |
if (DoCancel && (r != POLYNULL)) { |
if (shouldReduceContent(r,0)) { |
if (shouldReduceContent(r,0)) { |
r = reduceContentOfPoly(r,&cont); |
r = reduceContentOfPoly(r,&cont); |
shouldReduceContent(r,1); |
shouldReduceContent(r,1); |
Line 456 static POLY reduction_ecart1(r,gset,needSyz,syzp) |
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Line 498 static POLY reduction_ecart1(r,gset,needSyz,syzp) |
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if (needSyz) { |
if (needSyz) { |
if (ells.first) { |
if (ells.first) { |
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if (ell > 0) cc = ppMult(cc,cxx(1,0,ell,rp)); |
cf = ppMult(cc,cf); |
cf = ppMult(cc,cf); |
syz = cpMult(toSyzCoeff(cc),syz); |
syz = cpMult(toSyzCoeff(cc),syz); |
syz = ppAddv(syz,toSyzPoly(cg,ells.grade,ells.gseti)); |
syz = ppAddv(syz,toSyzPoly(cg,ells.grade,ells.gseti)); |
}else{ |
}else{ |
fprintf(stderr,"It has not yet implemented.\n"); |
if (ell >0) cc = ppMult(cc,cxx(1,0,ell,rp)); |
exit(10); |
cf_o = (gg->cf)[ells.ggi]; |
/* BUG: not yet */ |
syz_o = (gg->syz)[ells.ggi]; |
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cf = ppMult(cc,cf); |
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cf = ppAdd(cf,ppMult(cg,cf_o)); |
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syz = cpMult(toSyzCoeff(cc),syz); |
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syz = ppAdd(syz,cpMult(toSyzCoeff(cg),syz_o)); |
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/* Note. 2003.07.19 */ |
} |
} |
} |
} |
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if (DebugReductionRed) { |
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POLY tp; |
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tp = ecartCheckSyz0(cf,r_0,syz,gset,r); |
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tp = goDeHomogenizeS(tp); |
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if (tp != POLYNULL) { |
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fprintf(stderr,"reduction_ecart1(): sygyzy is broken. Return the Current values.\n"); |
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fprintf(stderr,"%s\n",POLYToString(tp,'*',1)); |
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syzp->cf = cf; |
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syzp->syz = syz; |
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return r; |
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} |
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} |
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if (r ISZERO) goto ss1; |
if (r ISZERO) goto ss1; |
r = ecartDivideSv(r,&se); /* r = r/s^? */ |
r = ecartDivideSv(r,&se); /* r = r/s^? */ |
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if (needSyz && (se > 0)) { /* It may not necessary because of dehomo*/ |
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POLY tt; |
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/*printf("!1/H!"); fflush(NULL);*/ /* misc-2003/ecart/t1.sm1 foo4 */ |
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tt = cxx(1,0,-se,rp); |
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cf = mpMult(tt,cf); |
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syz = cpMult(toSyzCoeff(tt),syz); |
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} |
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} |
} |
}while (ell >= 0); |
}while (ell >= 0); |
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ss1: ; |
ss1: ; |
if (needSyz) { |
if (needSyz) { |
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/* dehomogenize the syzygy. BUG, this may be inefficient. */ |
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cf = goDeHomogenizeS(cf); |
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syz = goDeHomogenizeS(syz); |
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/*printf("cf=%s\n",POLYToString(cf,'*',1)); |
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printf("syz=%s\n",POLYToString(syz,'*',1));*/ |
syzp->cf = cf; /* cf is in the CurrentRingp */ |
syzp->cf = cf; /* cf is in the CurrentRingp */ |
syzp->syz = syz; /* syz is in the SyzRingp */ |
syzp->syz = syz; /* syz is in the SyzRingp */ |
/* BUG: dehomogenize the syzygy */ |
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fprintf(stderr,"It has not yet implemented.\n"); |
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exit(10); |
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} |
} |
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r = goDeHomogenizeS(r); |
r = goDeHomogenizeS(r); |
if (DoCancel && (r != POLYNULL)) { /* BUG: syzygy should be corrected. */ |
if (DoCancel && (r != POLYNULL)) { |
if (r->m->ringp->p == 0) { |
if (r->m->ringp->p == 0) { |
r = reduceContentOfPoly(r,&cont); |
r = reduceContentOfPoly(r,&cont); |
if (DebugReductionEcart || DebugReductionRed || DebugContentReduction) printf("cont=%s ",coeffToString(cont)); |
if (DebugReductionEcart || DebugReductionRed || DebugContentReduction) printf("cont=%s ",coeffToString(cont)); |