100 while ((
j>0) && (!syz->m[
j-1]))
j--;
109 for (
l=
k;
l<
j-1;
l++) syz->m[
l] = syz->m[
l+1];
125 while ((
j>0) && (syz->m[
j-1]==
NULL))
j--;
145 if ((len==0) ||((
l>0) && (
l<len)))
166 for (
k=
i;
k<
j-1;
k++) syz->m[
k] = syz->m[
k+1];
184 syz->m[
k] =
pSub(syz->m[
k],
189 syz->m[
l] = syz->m[
l+1];
224 if (from<0) from = 0;
232 poly
tmp=syz->m[from];
311 (*have_del)[
j-1] = 1;
409 wtmp[0]=(*weights)[0];
431 if ((weights!=
NULL) && (*weights!=
NULL)&& ((*weights)[0]!=
NULL))
435 WarnS(
"wrong weights given(1):"); (*weights)[0]->show();
PrintLn();
442 if ((weights==
NULL) || (*weights==
NULL) || ((*weights)[0]==
NULL))
453 if ((weights!=
NULL) && (*weights!=
NULL)&& ((*weights)[0]!=
NULL))
707 if (
idIs0(
id))
return 0;
776 int i,
j=0,
k=0,
l,rows,cols,
mr;
813 WarnS(
"betti-command: Input is not homogeneous!");
817 if (weights==
NULL) weights=
w;
836 for (
i=0;
i<cols-1;
i++)
849 WerrorS(
"input not a resolution");
869 if (rows <(*weights)[
j]+1) rows=(-
mr)+(*weights)[
j]+1;
885 (*result)[(-
mr)*cols] =
rkl;
886 if ((!
idIs0(
res[0])) && ((*result)[(-
mr)*cols]==0))
903 for(
j=0;
j<=rows+
mr;
j++)
909 for (
i=0;
i<cols-1;
i++)
949 for (
j=0;
j<=rows;
j++)
963 for (
j=1;
j<=rows+
mr+1;
j++)
965 for (
k=1;
k<=cols;
k++)
970 for (
j=rows+
mr+1;
j<=rows+1;
j++)
972 for (
k=1;
k<=cols;
k++)
1020 if ((
leng>=1) && (*(weights+1)!=
NULL))
1022 delete *(weights+1);
1048 if (weights[
i] !=
NULL)
1058 while (weights[
i] !=
NULL)
i++;
1080 if (
res[0]->rank==0)
1090 while (weights[
i]!=
NULL)
1115 (*result)[0] =
res[0]->rank;
1135 for (
j=0;
j<
rs-1;
j++)
1144 (*result)[
i+1] -= (*tocancel)[0];
1145 (*result)[
i+2] -= (*tocancel)[0];
static int si_max(const int a, const int b)
void show(int mat=0, int spaces=0) const
void WerrorS(const char *s)
ideal idSyzygies(ideal h1, tHomog h, intvec **w, BOOLEAN setSyzComp, BOOLEAN setRegularity, int *deg, GbVariant alg)
BOOLEAN idTestHomModule(ideal m, ideal Q, intvec *w)
ideal idLift(ideal mod, ideal submod, ideal *rest, BOOLEAN goodShape, BOOLEAN isSB, BOOLEAN divide, matrix *unit, GbVariant alg)
represents the generators of submod in terms of the generators of mod (Matrix(SM)*U-Matrix(rest)) = M...
ideal idMinEmbedding(ideal arg, BOOLEAN inPlace, intvec **w)
#define idDelete(H)
delete an ideal
BOOLEAN idIs0(ideal h)
returns true if h is the zero ideal
static BOOLEAN idHomModule(ideal m, ideal Q, intvec **w)
static BOOLEAN length(leftv result, leftv arg)
intvec * ivCopy(const intvec *o)
#define IMATELEM(M, I, J)
ideal kInterRedOld(ideal F, const ideal Q)
static bool rIsSCA(const ring r)
bool ncExtensions(int iMask)
ideal id_KillSquares(const ideal id, const short iFirstAltVar, const short iLastAltVar, const ring r, const bool bSkipZeroes)
#define omFreeSize(addr, size)
#define SI_RESTORE_OPT1(A)
#define TEST_OPT_DEGBOUND
#define TEST_OPT_NOTREGULARITY
#define TEST_OPT_NO_SYZ_MINIM
static int index(p_Length length, p_Ord ord)
poly p_Cleardenom(poly p, const ring r)
void p_SetModDeg(intvec *w, ring r)
static long p_FDeg(const poly p, const ring r)
void rChangeCurrRing(ring r)
VAR ring currRing
Widely used global variable which specifies the current polynomial ring for Singular interpreter and ...
Compatibility layer for legacy polynomial operations (over currRing)
static long pTotaldegree(poly p)
#define pHead(p)
returns newly allocated copy of Lm(p), coef is copied, next=NULL, p might be NULL
#define pLmIsConstantComp(p)
like above, except that p must be != NULL
#define pDeleteComp(p, k)
#define pGetComp(p)
Component.
#define pLmDelete(p)
assume p != NULL, deletes Lm(p)->coef and Lm(p)
#define pVectorHasUnitB(p, k)
void pTakeOutComp(poly *p, long comp, poly *q, int *lq, const ring R=currRing)
Splits *p into two polys: *q which consists of all monoms with component == comp and *p of all other ...
#define pCopy(p)
return a copy of the poly
#define pVectorHasUnit(p, k, l)
ideal idrMoveR_NoSort(ideal &id, ring src_r, ring dest_r)
ideal idrCopyR_NoSort(ideal id, ring src_r, ring dest_r)
void PrintS(const char *s)
ring rAssure_SyzComp(const ring r, BOOLEAN complete)
int rGetMaxSyzComp(int i, const ring r)
return the max-comonent wchich has syzIndex i Assume: i<= syzIndex_limit
void rDelete(ring r)
unconditionally deletes fields in r
void rSetSyzComp(int k, const ring r)
static BOOLEAN rIsPluralRing(const ring r)
we must always have this test!
static int rGetCurrSyzLimit(const ring r)
BOOLEAN rHasGlobalOrdering(const ring r)
static BOOLEAN rField_has_simple_inverse(const ring r)
#define rField_is_Ring(R)
ideal SCAQuotient(const ring r)
static short scaLastAltVar(ring r)
static short scaFirstAltVar(ring r)
ideal idInit(int idsize, int rank)
initialise an ideal / module
void id_Delete(ideal *h, ring r)
deletes an ideal/module/matrix
long id_RankFreeModule(ideal s, ring lmRing, ring tailRing)
return the maximal component number found in any polynomial in s
ideal id_Jet(const ideal i, int d, const ring R)
void idSkipZeroes(ideal ide)
gives an ideal/module the minimal possible size
void id_Shift(ideal M, int s, const ring r)
static int idElem(const ideal F)
number of non-zero polys in F
EXTERN_VAR omBin char_ptr_bin
int syDetect(ideal id, int index, BOOLEAN homog, int *degrees, int *tocancel)
resolvente syResolvente(ideal arg, int maxlength, int *length, intvec ***weights, BOOLEAN minim)
syStrategy syMres_with_map(ideal arg, int maxlength, intvec *w, ideal &trans)
syStrategy syResolution(ideal arg, int maxlength, intvec *w, BOOLEAN minim)
syStrategy syMinimizeCopy(syStrategy org)
static poly sypCopyConstant(poly inp)
static void syMinStep1(resolvente res, int length)
static void syMinStep(ideal mod, ideal &syz, BOOLEAN final=FALSE, ideal up=NULL, tHomog h=isNotHomog)
ideal syMinBase(ideal arg)
static intvec * syPrepareModComp(ideal arg, intvec **w)
void syMinimize_with_map(syStrategy res, ideal &trans)
void syGaussForOne(ideal syz, int elnum, int ModComp, int from, int till)
static void syDeleteAbove1(ideal up, int k)
static void syDeleteAbove(ideal up, int k)
intvec * syBetti(resolvente res, int length, int *regularity, intvec *weights, BOOLEAN tomin, int *row_shift)
void syMinimizeResolvente(resolvente res, int length, int first)
syStrategy syMinimize(syStrategy syzstr)
void syKillEmptyEntres(resolvente res, int length)