| version 1.7, 2001/06/25 04:11:41 |
version 1.10, 2001/07/03 01:41:25 |
|
|
| * 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 1.6 2001/06/25 01:35:20 noro Exp $ |
* $OpenXM: OpenXM_contrib2/asir2000/builtin/gf.c,v 1.9 2001/06/28 08:57:20 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(); |
|
| Line 84 void Plinear_form_to_vect(),Pvect_to_linear_form(); |
|
| 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,NODE *); |
void sfuhensel(P,NODE,GFS,int,NODE *); |
| |
|
| extern int current_ff; |
extern int current_ff; |
| |
|
| Line 97 struct ftab gf_tab[] = { |
|
| Line 97 struct ftab gf_tab[] = { |
|
| {"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}, |
| }; |
}; |
| |
|
|
|
| LIST *rp; |
LIST *rp; |
| { |
{ |
| P f; |
P f; |
| V x,y; |
int bound; |
| NODE r; |
NODE r,mfl; |
| |
GFS ev; |
| |
|
| 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,&r); |
bound = QTOS((Q)ARG3(arg)); |
| |
sfuhensel(f,mfl,ev,bound,&r); |
| MKLIST(*rp,r); |
MKLIST(*rp,r); |
| } |
} |
| |
|
| void sfuhensel(f,x,y,rp) |
void sfuhensel(f,mfl,ev,bound,rp) |
| P f; |
P f; |
| V x,y; |
NODE mfl; |
| |
GFS ev; |
| |
int bound; |
| NODE *rp; |
NODE *rp; |
| { |
{ |
| ML lift; |
BM fl; |
| int i; |
BM *r; |
| P s; |
VL vl,nvl; |
| |
int i,fn,dx,dy; |
| NODE t,top; |
NODE t,top; |
| |
UM fm,hm,q; |
| |
UM *gm; |
| |
V x,y; |
| |
P g,s,u; |
| |
|
| sfhensel(5,f,x,&lift); |
clctv(CO,f,&vl); |
| for ( i = lift->n-1, top = 0; i >= 0; i-- ) { |
if ( !vl || !vl->next || vl->next->next ) |
| sfbmtop(CO,lift->bound,lift->c[i],x,y,&s); |
error("sfuhensel : f must be a bivariate poly"); |
| MKNODE(t,s,top); top = t; |
|
| |
for ( i = 0, t = mfl; t; i++, t = NEXT(t) ); |
| |
fn = i; |
| |
|
| |
gm = (UM *)MALLOC(fn*sizeof(UM)); |
| |
|
| |
/* XXX : more severe check is necessary */ |
| |
x = VR((P)BDY(mfl)); |
| |
y = vl->v == x ? vl->next->v : vl->v; |
| |
|
| |
for ( i = 0, t = mfl; i < fn; i++, t = NEXT(t) ) { |
| |
gm[i] = (pointer)UMALLOC(getdeg(x,(P)BDY(t))); |
| |
ptosfum((P)BDY(t),gm[i]); |
| |
} |
| |
|
| |
/* reorder f if necessary */ |
| |
if ( vl->v != x ) { |
| |
reordvar(vl,x,&nvl); reorderp(nvl,vl,f,&g); |
| |
vl = nvl; f = g; |
| |
} |
| |
dx = getdeg(x,f); |
| |
dy = getdeg(y,f); |
| |
dy = MAX(dy,bound); |
| |
fl = BMALLOC(dx,dy); |
| |
ptosfbm(dy,f,fl); |
| |
shiftsfbm(fl,FTOIF(CONT(ev))); |
| |
|
| |
/* fm = fl mod y */ |
| |
fm = W_UMALLOC(dx); |
| |
cpyum(COEF(fl)[0],fm); |
| |
hm = W_UMALLOC(dx); |
| |
|
| |
q = W_UMALLOC(dx); |
| |
r = (BM *)MLALLOC(fn*sizeof(BM)); |
| |
for ( i = 0; i < fn-1; i++ ) { |
| |
/* fl = gm[i]*hm mod y */ |
| |
divsfum(fm,gm[i],hm); |
| |
/* fl is replaced by the cofactor of gk mod y^bound */ |
| |
/* r[i] = gk */ |
| |
sfhenmain2(fl,gm[i],hm,bound,r+i); |
| |
cpyum(hm,fm); |
| |
} |
| |
/* finally, fl must be the lift of gm[fn-1] */ |
| |
r[i] = fl; |
| |
|
| |
for ( i = fn-1, top = 0; i >= 0; i-- ) { |
| |
sfbmtop(r[i],x,y,&s); |
| |
reorderp(CO,vl,s,&u); |
| |
MKNODE(t,u,top); top = t; |
| } |
} |
| *rp = top; |
*rp = top; |
| } |
} |