version 1.8, 2001/06/25 10:01:27 |
version 1.11, 2001/08/02 03:59:15 |
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* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE, |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE. |
* |
* |
* $OpenXM: OpenXM_contrib2/asir2000/builtin/gf.c,v 1.7 2001/06/25 04:11:41 noro Exp $ |
* $OpenXM: OpenXM_contrib2/asir2000/builtin/gf.c,v 1.10 2001/07/03 01:41:25 noro Exp $ |
*/ |
*/ |
#include "ca.h" |
#include "ca.h" |
#include "parse.h" |
#include "parse.h" |
Line 84 void Plinear_form_to_vect(),Pvect_to_linear_form(); |
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Line 84 void Plinear_form_to_vect(),Pvect_to_linear_form(); |
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void solve_linear_equation_gf2n(GF2N **,int,int,int *); |
void solve_linear_equation_gf2n(GF2N **,int,int,int *); |
void linear_form_to_array(P,VL,int,Num *); |
void linear_form_to_array(P,VL,int,Num *); |
void array_to_linear_form(Num *,VL,int,P *); |
void array_to_linear_form(Num *,VL,int,P *); |
void sfuhensel(P,V,V,GFS *,NODE *); |
void sfuhensel(P,NODE,GFS,int,NODE *); |
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extern int current_ff; |
extern int current_ff; |
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Line 97 struct ftab gf_tab[] = { |
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Line 97 struct ftab gf_tab[] = { |
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{"resfmain",Presfmain,4}, |
{"resfmain",Presfmain,4}, |
{"pwr_mod",Ppwr_mod,6}, |
{"pwr_mod",Ppwr_mod,6}, |
{"uhensel",Puhensel,4}, |
{"uhensel",Puhensel,4}, |
{"sfuhensel",Psfuhensel,3}, |
{"sfuhensel",Psfuhensel,4}, |
{0,0,0}, |
{0,0,0}, |
}; |
}; |
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LIST *rp; |
LIST *rp; |
{ |
{ |
P f; |
P f; |
V x,y; |
int bound; |
NODE n,r; |
NODE r,mfl; |
GFS ev; |
GFS ev; |
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f = (P)ARG0(arg); |
f = (P)ARG0(arg); |
x = VR((P)ARG1(arg)); |
mfl = BDY((LIST)ARG1(arg)); |
y = VR((P)ARG2(arg)); |
ev = (GFS)ARG2(arg); |
sfuhensel(f,x,y,&ev,&r); |
bound = QTOS((Q)ARG3(arg)); |
MKNODE(n,ev,r); |
sfuhensel(f,mfl,ev,bound,&r); |
MKLIST(*rp,n); |
MKLIST(*rp,r); |
} |
} |
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void sfuhensel(f,x,y,evp,rp) |
void sfuhensel(f,mfl,ev,bound,rp) |
P f; |
P f; |
V x,y; |
NODE mfl; |
GFS *evp; |
GFS ev; |
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int bound; |
NODE *rp; |
NODE *rp; |
{ |
{ |
ML lift; |
BM fl; |
int i; |
BM *r; |
P s,u,sf; |
VL vl,nvl; |
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int i,fn,dx,dy; |
NODE t,top; |
NODE t,top; |
struct oVL vl1,vl; |
UM fm,hm,q; |
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UM *gm; |
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V x,y; |
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P g,s,u; |
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sfhensel(5,f,x,evp,&sf,&lift); |
clctv(CO,f,&vl); |
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if ( !vl || !vl->next || vl->next->next ) |
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error("sfuhensel : f must be a bivariate poly"); |
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vl1.v = y; vl1.next = 0; |
for ( i = 0, t = mfl; t; i++, t = NEXT(t) ); |
vl.v = x; vl.next = &vl1; |
fn = i; |
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for ( i = lift->n-1, top = 0; i >= 0; i-- ) { |
gm = (UM *)MALLOC(fn*sizeof(UM)); |
sfbmtop(lift->bound,lift->c[i],x,y,&s); |
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reorderp(CO,&vl,s,&u); |
/* XXX : more severe check is necessary */ |
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x = VR((P)BDY(mfl)); |
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y = vl->v == x ? vl->next->v : vl->v; |
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for ( i = 0, t = mfl; i < fn; i++, t = NEXT(t) ) { |
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gm[i] = (pointer)UMALLOC(getdeg(x,(P)BDY(t))); |
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ptosfum((P)BDY(t),gm[i]); |
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} |
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/* reorder f if necessary */ |
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if ( vl->v != x ) { |
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reordvar(vl,x,&nvl); reorderp(nvl,vl,f,&g); |
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vl = nvl; f = g; |
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} |
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dx = getdeg(x,f); |
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dy = getdeg(y,f); |
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dy = MAX(dy,bound); |
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fl = BMALLOC(dx,dy); |
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ptosfbm(dy,f,fl); |
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if ( ev ) shiftsfbm(fl,FTOIF(CONT(ev))); |
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/* fm = fl mod y */ |
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fm = W_UMALLOC(dx); |
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cpyum(COEF(fl)[0],fm); |
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hm = W_UMALLOC(dx); |
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q = W_UMALLOC(dx); |
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r = (BM *)MLALLOC(fn*sizeof(BM)); |
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for ( i = 0; i < fn-1; i++ ) { |
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/* fl = gm[i]*hm mod y */ |
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divsfum(fm,gm[i],hm); |
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/* fl is replaced by the cofactor of gk mod y^bound */ |
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/* r[i] = gk */ |
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sfhenmain2(fl,gm[i],hm,bound,r+i); |
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cpyum(hm,fm); |
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} |
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/* finally, fl must be the lift of gm[fn-1] */ |
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r[i] = fl; |
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for ( i = fn-1, top = 0; i >= 0; i-- ) { |
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sfbmtop(r[i],x,y,&s); |
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reorderp(CO,vl,s,&u); |
MKNODE(t,u,top); top = t; |
MKNODE(t,u,top); top = t; |
} |
} |
*rp = top; |
*rp = top; |