PHƯƠNG PHÁP XÁC ĐỊNH PHƯƠNG TRÌNH DẠNG ẨN CHO ĐƯỜNG CONG VÀ MẶT THAM SỐ HỮU TỶ
NGUYỄN HIỀN LƯƠNG
Trang nhan đề
Mục lục
Mở đầu
Chương1: Tổng quan.
Chương2: Lý thuyết khử, syzygy và bài toán ẩn hóa.
Chương3: Các thuật toán ẩn hóa đường cong và mặt tham số hữu tỷ.
Kết luận
Phụ lục
Tài liệu tham khảo
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Phl;t ll;tcA
" " " "A? ? ,./'
THU~TTOANTINHB~CANCUAD~NGTHAMSO
Chungtabierdingyoi m6id~;lllgthams6hoacuam~thuuty se t6n
t(;limOts6nguyenn ~1 saochomOtdiSmtrenm~tu'dnglingyoi n giatri
thams6.s6 n du'QcgQi1fts6tu'dnglingcuad(;lngthams6boa.Khi n = 1~ ta
noi d(;lngthams6 hoa1ftchinhqui,ngu'Qcl(;li1ftkhongchinhqui.Theo Dinh
19Bezout [14],b~ccua da thlic f b~ngs6 giaodiSmcua m~td(;lis6 f =0 .
yft hai m~tph~ng.Nhu'nggiao cua hai m~tph~ng1ftmOtdu'ongth~ng,y~y
sudvnghaidu'ongth~ngkhacnhauchungtaseHnhdu'Qcb~ccuadathlicf.
Thm}ttoanA.I. Tinhb~cin cuam~thams6huuty(1.3)[4].
Nh4p:
Xudt:
Rude1:
Rude2:
Rude3:
Rude4:
Cac dathlic a,b,c,dE k[s,t].
I Ia b~cin cuam~thams6huuty (1.3).
TImbiSudi~nin cuamOtdu'ongth~ngtoy9 ca:tm~tham
s6huuty alx+(31Y+ "YlZ+81=a2x+(32Y+"f2Z +82=o.
Cacgiatri s tu'dnglingyoi cacgiaodiSmcuadu'ongth~ng
trongRude1 yoi m~tthams6 1ftnghi~mcua k~tthuc
h(s) = Res(ala + (31b+ "flC+ 81d,a2a+ (32b+ "f2C+ 82d,t).
Neum~thams6cochliacacdiSmcosothl h(s)cocac
nghi~mngo(;lilai. DS lo(;libo chung,chungta HmbiSu
di~nin cuamOtdu'ongth~ngtoy9khacyoi du'ongth~ng
trongRude1 Ia alx +!31Y+ilZ +81= a2x+!32Y+i2Z +82
=o.
Tu'dngtvxacdinhdathlicco clings6nghi~mngo(;liai yoi
Budc5:
41
da thuc h(s)trongBudc 2 Ia fi(s)= Res(ala+,BIb+"YIC+
81d,a2a + ,B2b+ "Y2C+ 82d,i).
Xua'tl:= deg(h(s))- deg(gcd(h(s),fi(s))).
Ph1;t l1;tcB
CACTHU!TTOANCOBANvtMATR!NDATHDc
Trangph§nnaychungtoi se trinhbaytomtiltmQts6khainit?mva cac
thu~troanHnhroancd banvS matr~nda thuclam cd sd chovit?cxa~dinh
modunsyzygy[14,19].
Ma tr~nF ca'p mx l voi cac ph§n td'thuQck[xl'...,xIJ duQcgQi Ia ma
tr~nda thuc, ky hit?u FE k1nXI[Xl"",Xn].Ma tr~n F co h~ngIa T', ky hi~u
rankF = T',ne'utan t~imQtdinhthucconca'pT'khac khongva ta'tca cac dinh
thucconca'pT'+ 1 dSub~ngkhong.Ne'u rank(F) = min(m,l) tanoi F 1ah~ng
d§yduoB~ccuaF, ky hit?udeg(F),1agiatri IOnnha'tcuab~ccuacacph§ntd'
cuaF.
Cho ME k1nX1n[Xl"",XIJ,khi do dinh thuc cua M 1amQtda thuc thuQc
k[Xl"",Xn]' Ta noi M khong suy bie'nne'u det(M) +=O. Ne'u det(M) Ia mQt
h~ngkhackhongthuQck tanoi M Ia ddnmodun.
Djnh nghiaB.l. Cha FE k1nXI[Xl'...,xnJ,m < l. Khi do F dll(1CgQi[a:
(1) Nghi~mnguyen((5trai (ZLP) ntu khongt6n tCfimQtn-bQ (zf,...,z~)E kn [a
nghi~mchungcilatatcdcacdinhthaccancapm cila F.
(2) Dinhthacnguyent6trai (MLP) ntu tatcdcacdinhthaccancap m cila F
nguyento'cungnhau.
(3) Thaas6nguyent6trai (FLP) ntu F =~F;,trangdo~danmodun.
Cackhaini~mnghi~mnguyent6phdi(ZRP),dinhthacnguyent6phdi(MRP)va
thaas6 nguyentlfphdi (FRP) dU:(lcdinhnghiatllangfT!.
43
Vdi n = 1,2thlMLP FLP va MRP FRP. Vdi n 2:: 3 thl MLP $. FLP
vaMRP $. FLP. Vdi n 2::1 thl MLP ~ FLPvaMRP~ FRP [18].
B.I Phantichnhantii'matr~ndathuc
~
Thu~ttminB.l. Phantichnhantii'tniichomatr~ndathuchaibie'nh~ngd~ydu
[12,16].
Nhljp: Ma tr~nFE kmXI[XpX2Jco h~ngd~ydu, m <l.
Xudt: Hai ma tr~n L E kmxm[xpx2J,R E kmXI[XpX2JsaDcho F = LR
va detL = 9 vdi 9 E k[XIJIa dungcuatidechungldnnha'tcua
BucJe1:
caedinhthucca'pm cuaF.
TIm dathuc9E k[XIJIa dungcuatidechungldnnha'tcuacac
dinhthucca'pm cuaF. Phantich9 thanhtichcuacaedathuc
ba'tkha guytrangk[XIJ.
L = 1m;R = F.
Bude2: Ne'u da:xet he'tcae thanhph~nba'tkha guy thl de'nRude 6.
NgtiQcI~i,vdi thanhph~nba'tkha guy p E k[XIJ
i =1;j =1;R =R (modp).
Rude3: Trang matr~nR,ne'ut6nt~imQthangio,vdi i <io<m, ma
ta'tca caeph~ntii'deub~ngkh6ngthl Do=diag(l,...,p,...,l)
Ia mQttidctraicuaF
L = LDo;R = D;;lR.
QuayI~iBude2 vdi thanhph~nba'tkhaguyke'tie'p.
BUdC4:
BUdC5:
44
Trangmatr~nR, tlmcQtjo d~utien,vdi j <jo < l, co it nha't
mQtph~ntakhackh6ngtrongcachangtu i de'nm
) =)0'
Trang cQt j cua matr~nR, tuhangi de'nm Hmph~ntaco
~
b~ctheox2nhonha't,gQila Rj~'D~tD1la matr~ncodu<;1ctu
1mbiingcachhoanvi haidongi va ~
- - -1
R =D1R; L =LD1;R =D1R.
Giii saCQtj cod~ng(...,ai,...,am)T.Hc$s6chud~ocuacacda
thuc ai' ..., amE k(X1)[X2]la cac da thuc bi, ..., bmE k[xd. Do
biva p nguyent6clIngnhaunentheothu~t toanchiaEuclide
tant~icacdathucg, h E k[X1]saocho
gbi=1- hp.
D~t a; =gai (modp)E k[XpX2]'Khi dotant~icacc~pdathuc
qk' ..., rkE k[X1,X2]saocho
*
ak= qkak+ rk'
vdi k = i +1,...,m va degtrk<degta; ho~c rk =O. D~t
1
1
D3= 1
-xqi+1 1
-xqm 1
RUdC6:
45
- - -1
R = D3R;L = LD3 ;R = D3R.
Khi docQtj cod(;lng(...,ai,1i+1,...,r;n)T.
R=R (modp).
Ne'ucac dathuc1i+1=...=r;n= 0 thl
i = i +1;j = j +1;
va quayl(;liRUdC3.NguQcl(;li,quayl(;liRUdC5.
Xua'tL, R.
Ne'um> l, taclingco phanrichnhantii'phaicho P, nghlala tlmduQc
hai ma tr~nL E k1nXl[Xp2]va R E k1Xl[X1'X2]saocho P =LR. Apd\lllgmatr~n
chuyS'nvi taco thS'xaydvngthu~troanphanrichnhantii'phainhusau.
Thm}ttminB.2.Phanrichnhantii'phaichomatr~ndathuchaibie'nh(;lngdfiy
duo
Nhqp:
Xudt:
RUdC1:
RUdC2:
RUdC3:
Ma tr~nP E k1nXl[Xp2]co h(;lngdfiydu, m >l.
Hai ma tr~nL E k1nXl[X1'2]'R E k1Xl[X1'X2]saocho P =LR va
detR = g voi gE k[X1]la dungcua uoc chungIOnnha'tcua
cacdinhthucca'pl cuaP.
Di;it p' = pT E k1X1n[X1'X2]'dungThu~troanB.1 tlm hai ma
tr~nL' E k1Xl[X1'X2]va R' E k1X1n[xpX2]saocho p' =L'R'.
Taco(pT)T=pIT=(L'R')ThayP =R'TLff=LR. Di;it
L =R'T;R=Lff.
Xua'tL,R.
B.2 Tim d~ngHermite
46
Cho ma tr;%nF E k1nXI[Xl'X2]'d,.lllgHermite cua F la ma tr;%nH = UF vdi
hij = 0 nSu i > j va degx2hii> degx2hij nSu i < j, trongdo U E k1nX1n[xl'X2]va
ddnmodun.Sa dl;lllgky thu;%tkha Gaussde timd~ngHermitechotru'onghQp
mQtbiSn[12],tacothu;%ttoansau.
Thu~t toan B.3. Tim d~ngHermitecho ma tr;%nda thti'chai biSn h~ngd~ydu
[12,14,19].
Nhqp: Ma tr;%nF E k1nXI[Xl'2]co h~ngd~yduo
Xudt: Ma tr;%nHermite HE k1nXI[Xl'X2]cua F.
Bu(]c1: Xem F E k1nX\Xl)[X2]'sa d\lngky thu;%tkha Gaussta timdu'Qc
matr;%nHermite II E k1nXI(Xl)[X2]cua F va matr;%n0 E k1nX1n(
Xl)[X2]saocho II = OF.
Bu(]c2: GQi hi vdi i = 1,...,m la bQichungnhonha'tcuacaem§:uthti'c
hangthti'i. D~tD =diag(~,...,h1n)'
- -
H=DH;U=DU.
Bu(]c3: Xua'tH.
B.3 Rut trichtidechungIOnnha't
A,B la haimatr;%ndathti'c ungsO'hang(cQt).A,B du'QcgQila nguyen
to'cungnhautrai (phai) nSu t6n t~ihai ma tr;%nA,B va matr;%nda thti'cddn
modunC saochoA =CA,B=CB (A=AC,B =BC).
47
Ma tr;%nda thucvuong D duQcgQila uoc chungtnii (phiii) IOnnha'tcua
A va B ne'utant~ihaimatr;%ndathuc1,13nguyento'cungnhautrai (phiii)
saocho A =DA,B=DB (A=AD,B=BD).
Thu~ttminB.4.TImuocchungphiiiIonnha'tcuahaimatr;%ndathuc[12,16].
~
Nhqp: Hai ma tr;%nda thuc A E kmXI[Xl'X2]va B E knXI[XpX2] sao cho
Xu{{t:
(AT,BT)T E k(m+n)xl[Xl,X2]la h~ngd~yduo
Ma tr;%ndathuc DE kIXI[Xl,X2]la uoc chungIon nha'tphiii cua
A vaB.
RUdC1: Dung Thu;%ttoanB.2 phantfchnhantuphiii matr;%n
[~]=[~]R.
RUdC2: Dung Thu;%ttoanB.3 tlmd~ngHermitecuamatr;%n(iF, IF)T
u[~J=[~J.
RUdC3: Dung Thu;%ttoanB.l phantichnhantu trai matr;%n
Rv=LR.
RUdc4: Xua'tD =RR.
B.4 Dc)phuct~pHnhtoaD
BQ phuct~pcuaThu;%ttoanBA phl;1thuQcvao dQphuct~pcuaThu;%t
toanB.l d RUdC1va 3 va dQphuct~pcuaThu;%ttoanB.3d RUdC2.CacThu;%t
toanB.l va B.3 d€u duQcxay d1.,1'ngd1.,1'atrencachtie'pc;%nc6 dienla phuong
phapkhii'Gauss.Banh gia dQphuct~pcua Thu;%toanB.l tuykhongdon giiin
48
nhrtngchUngtaco th€ thiy cdbanno se g6rndi)ph",ctaPd€ Hnh(7] dinhthuc
ca'pm d Budc 1 va dQphuc t""pcua cac bu'ockhii'Gausscon I""i.Nhu'v~ydQ
phuc t""pcua Thu~troanB.I cling Ia mQtham da thuc theo m,Z.DQ phuc t~p
,
cuaThu~troanB.3Ia O(mZ2d2)[20],trongdo d Ia b~ccuamatr~ndathuc.V~y
dQphuct""pcuaThu~troanBA Ia mQthamdathuc.
Phl;t ll;tc C
A "" ?
THU~T TOAN XAC DJNH JL-COSO
Trangph~nnay chungWi trlnhbay thu~ttoantim f.L-cdsd cua duongcQng
ph~ngva m~tthallis6 hull ty duqcsad1;lllgtrongThu~ttoan3.3va 3.4trong
Chuang3.
c.t Thn~ttoaDOmp,-cdsO'cuadu'ongcongthams(fhunty phdng
Cd sd de xay dl;1'ngthu~ttoanxac dinh f.L-cdsd cua duongcong thalli s6
hulltyph~ngla cacke'tquasau.
DinhIy C.t. Chop,q E Syz(a,b,c)la haidudngthdngdi d(}ngsinhdudngGong
thamsf;'(1.2)bfjc n. Gid sii deg(p)<deg(q), khi do p va q tCJothanhf.L-casO
cuadudngGong(1.2)niu vachiniu m(}trongcacddu ki~nsauthoa
(1) M(}tdudngthdngdi d(}ngL sinhdudngGongthams{f(1.2)co thi duf/cbiiu
diln boi (2.3)wii deg(~p):::;deg(L)va deg(h2q)<deg(L).
(2) M(}tdudngthdngdi d(}ngL sinhdudngGongthams{f(1.2)co thi duf/cbilu
diln boi (2.3)va haivectdLV(p) va LV(q) d(}clfjp tuyin tinhtren JR.
(3) M(}tdudngthdngdi d(}ngL sinhdudngGongthams{f(1.2)co thi duf/cbilu
diln boi (2.3)va deg(p)+deg(q)=n.
Chungminh:xem[2,tr.374].
M~nhd~C.2.
(1) ModunsyzygySyz(a,b,c) cuadudngGongthams{fhilu typhdng (1.2)duf/c
50
sinh biJi ba duilngthlingdi dQngVI=(-b,a,0), V2= (-c,0,a) va V3= (D,c,
-b).
(2) rank(vI,v2,V3)=2.
(3) rank(LV(vI)'LV(V2)'LV(vJ) =2.
Chung minh: xem[2,tr. 376- 377].
Thu~t toaDC.l. Tim p,-edsa euadttongeongthams6huuty phing [2].
Nh(jp: Cae dathlie a,b,cE k[t].
Xudt: Hai da thlie p,q E k[x,y,t] 13.p,-edsa euadttongeongthams6
huutyphing.
Rude1: Df;it
VI = (-b,a,D),V2= (-c,D,a),V3= (D,c,-b);
mI= LV(VI)' m2=LV(v2)'m3=LV(v3)'
Rude2: Df;it ni = deg(vi)'vdi i = 1,2,3.Khongma'ttinhtangquat,ta
siip xe'p1~icae Vi theothli t1!giamd~neuacae ni.
Rude3: Tim caes6 th1!eaI' a2'a3 (co it nha't2 s6 khaethong) saoeho
aImI +a2m2+ a3m3=D.
Rude 4: Ne'u al -:;r:. Dthi
V - a V +a tnl-n2v +a tnl-n3v .1 - 1 1 2 2 3 3'
~ =LV(VI);
nI =deg( VI)'
Ne'u al = D khi do a2,a3-:;r:.0 thi
V - r" V + tn2-n3V '2 - "'2 2 a3 3'
51
m2 =LV(V2);
n2 =deg(V2).
Buac5: Ne'umQttrongcac Vi=0, gia SITla VI= 0, thld~tp = V2va
q = V3Ia hai da thuc t<:;lOthanhf-J,-Cdsa cua du'ongcongt~ham
s6huutyph£ng.Ngu'qcl<:;li,quayv6Buac2.
C.2 Thn~t toaDtimp,-cdsdcuam~t thamsf{hunty
Cd sa quantrQngdegiupHmf-J,-cdsacuam~tthams6hUllty la haike't
quasau.
Dinh Iy C.3.Chomiftthamsdhiiuty (1.3),khid6fuontan((;iibaphdngdi dqng
p,q,r saGcho(2.4)thoa.Banniia,mqtcasa p,q,r tflyycaamodunSyz(a,b,c,
d) Gangthoa(2.4).
Chung minh: xem[1,tr.694].
Dinh Iy C.4. Cho p,q,r fa mQtf-J,-casa caamiftthamso'hiiu ty (1.3).Khi do
p,q,r famQtcasacaamodunSyz(a,b,c,d),ngh'iafavaiba'tkyphdngdidQngP
sinhmiftthamso'co bilu ddn duy nha't
P =~p+~q+h3r
vai ~,~, h3E IR.[s,t]. Ban niia degt(~p),degt(~q),degt(h3r)<degt(P)+degt(p)
+degt(q)+degt(r)- n; degs(~p),degs(~q),degs(h3r):::; degs(P)+degs(p)+degs(
q)+degs(r)- m ntumiftfasongbtJ-c(m,n) va deg(~p),deg(~q),deg(h3r)<deg
(P) +deg(p)+deg(q)+deg(r)- n ntu miftfaphantamgidcbtJ-cn.
Chung minh: xem[1,tr. 695].
52
Do d6 de rim f-L-cosd cua mi,itthams6 huu ty (1.3)chungta chi cffnxac
dinh co sd cua m6dunSyz(a,b,c,d). Chungtabie'tding vi~cxac dinh co sd cho
mQt m6dun tl,l'do la kh6ng d~dang. Trong khi d6 ta c6 the sa d\lng ytudngcua
thu~troanBuchbergerde xay dl,l'ngt~phqp cacphffnta sinhchom6dunsy-zygy
[10]va sa d\lngke'tquacuaM~nhd€ 2.20de rimco sd chom6dunSyz(a,b,c,d).
Nhungphuongphapnay ding chuahi~uqua.
Sa d\lng cac ke'tqua nghien CUllv€ m6dunsyzygycua h~ cac phuong
trinhtuye'ntinhthuffnnha'tvoi cach~s6 la da thucnhi€u bie'ndl,l'atrenly
thuye'tcacmatr~ndathuc[18],chungtac6thexaydl,l'ngthu~troanxacdinhf-L-
co sd cho mi,itthams6huuty [12].Honnuaphuongphapnayclingc6theduqc
ap d\lngde rim f-L-cosd choduongcongthams6 huuty hi~uquahonThu~troan
D.l.
Cho matr~ndathucF = (A,...,ft)E k7nXI[Xl"",XrJKhi d6 (~,...,hl)T E kl[
Xl,...,X,JduqcgQiIa mQtsyzygycua F ne'u
I
Lhd:=o.
i=l
(D.1)
T~phqpta'tca cacsyzygycua F duqcgQila m6dunsyzygycuaF, kyhi~ula
Syz(F).T~phqpcac~,...,hsE kl[xl1'",xnJduqcgQiIa t~pcacphffntasinhcua
Syz(F) ne'u
Fhi =0 voi i =1,...,8 (D.2)
va voi mQisyzygyt E Syz(F) t6nt~iduynha'tcac da thuc fl1""fs E k[xl1""x,J
saDcho
53
t =h~+... Ishs' (D.3)
Ne'utad~th =(hi,...,fmJT,hj =(~j,...,hlj)Tvat =(~,...,tl)Tvoii =1,...,[va
j = 1,...,sthlcacbi€u thuc(C.2)va(C.3)trdthanh
hI hi )(~I ... ~s
=0
Imi ... ImLjlhn
~ ..
F
... his
Ii
va
; _f;I ... ;sH~. -
tl Ihn ... hisIlls
Khi do H =(~,...,hs)E kIXS[xu...,x,JduQcgQila matr~nsinhcua Syz(F).Cau
hoi d~tra la khinaothlmatr~nH co s6cQtnhonha'tva co tant~ihaykh6ng
mQtmatr~nsinhco s6cQtnhonha'tvoi F ba'tky? Cacke'tquasause traloi
chova'nd€ nay.
Mc$nhd@C.S. Cho F =(-fib) E kmXI[Xl1'..,X,Jco h{mgfa m, wii 1> m va b E
kmxm[xu...,x,J khongsuybitn.Diit T=[- m, khidomodunSyz(F) comatrlJ.n
sinhdip [x T ntu va chi ntu tant{lim(}tmatrtJ.nMRP HE kIXr[XI,...,x,JSaDcho
FH = O.Hefnnila H chinhfa matrtJ.nsinh.
Chung minh: xem[18,tr. 80].
Voi n ::;2 talu6nHmduQcmQtmatr~nsinhco s6cQtnhonha'tchoF tuyy.
54
Mc%nhd~C.6. Cho F = (-Njj) E klnXI[Xl,X2]co hc;mgla m, velil> m va DE
klnXIn[xl'X2]khong suy bien.Dijt r =l- m, khi do tan tc;limQtma tr4nsinh H E
klXr[xl'X2]cho modun Syz(F).
Chung minh: xem[18,tr. 81].
D~t F = (a,b,c,d)E eX4[s,t],theoM~nhde C.6 m6dunSyz(F) hay Syz(a,
b,c,d) comatr~nsinhH E k4X3[S,t].TheoM~nhde2.20,suyracaccQtcuaH
t(;lOthanhmQtcdsacuam6dunSyz(a,b,c,d).V~ytacothu~toansauxacdinh
p,-cdsachom~thamsO'hiluty.
Thu~ttoaDC.2.Timp,-cdsachom~thamsO'hiluty [12].
Nh4p: Cac dathuc a,b,c,dE k[s,t].
Xw1't: Badathucp,q,r E k[x,y,z,s,t] la p,-cdsacuam~thamsO'hilu
Buelc1:
?
ty.
D~tN=(-a,-b,-c) va jj = (d).Xay dllngmatr~n
p = jj-lN =(-ajd,-bjd,-cjd) =ND-1.
BuelC2:
Trongdo N =(-a,-b,-c) va D =diag(d,d,d).
DungThu~toanB.4till u'occhungIOnnhtt C cua N va D.
Khi do t6nt(;lihaimatr~nN,jj E k[s,t] saocho
- -
N =NC;D =DC;
trongdoN va jj nguyento' cungnhauphai.D~t
-T -T T
H =(N ,D ) =(hr,~,h3);
P =hrT(x,y,z,l);q=h;(x,y,z,l);r=hJ(x,y,z,l).
55
Blide3: Xua'tp,q,r.
C.3 Dc}phuc t~p Hnh tmin
DQ phuct(;lpcuaThu~troanC.! trongtrlionghQptrungbinh la O(n2)[2].
Trangkhi do vi~cdanhgiadQphuct(;lpcuaThu~troanC.2 la khongdongian
va noph\lthuQcchinhvaodQphuct(;lpcuacacthu~troanv€ Hnhroanmatr~n
dathuctrongPh\ll\lc B. C\l the,neuboquadQphuct(;lpcuavi~cxayd1;fngcac
matr~nN va D t(;liBlide1thidQphuct(;lpcuaThu~troanC.2ph\lthuQc hinh
vaodQphuct(;lpcuaThu~troanB.4 d Blide2.V~ytaco thexemdQphuct(;lp
cuaThu~troanC.2xa'pXl dQphuct(;lpcuaThu~troanB.4va clingla mQtham
dathuc.
Phl;tll;tcD
cA C PHUONG TRINH M4.T HUU TY
TrangphgnnaychungWi lit%tke phu'dngtrinhcacm~thuuty du'Qcdung
d€ daubgiacacthu~troangnhoatrongChu'dng3.
Sl = -3s3t- 3,-4i +6st,9s- 6,t;
s = it +2st5- st s3e- s2t3- 2it2 +S2- st - 2s s - t - 2 s2t- se - 2st,2' ",
S3 = S2 +t, s2t+st4+st2- 3s+t5- 3t3, st+e- 3, s2t+2se- 3s+t3- 3t;
S4 = -18s4t+27s3t2- s2t3- 8st4+ 2t5,
4s3t3+6s3t2+2s3t- 2s2t4- 3it3 - s2t2,
-3s3t2- 3s3t- 8it3 - 8s2t2- 6s2t- 6i + 3st4+ 3st3+ 2st2+ 2st,
6s3t2+6s3t- 5s2t3- 5it2 +st4+st3;
S5=S3 +5st2+2st+t3- 1,2S2+3st+2t3- 2,5s3+2it +3se+5st+5t2- 5,
S4 + t4- 1;
S6 = 16s3+32it -120i - 56st+128s+24t- 24,
48it +8i +16se- 456st+384s+16e-16t2+392t- 392,
16s3+32it +192i +48se-1328st+1040s+64e- 48e+1232t-1248,
16s3- 240st+224s+16e+224t- 240;
S7 = 16s3+32it -120i - 56st+128s+24t- 24,
48s2t+8i +16se- 456st+384s+16t3-16e +392t- 392,
16s3+32it +192i +48st2-1328st+1040s+64t3- 48e+1232t-1248,
- 2i +8s- 6;
S8 = 684288s3-1419264it- 608256i+684288st2+1495296st- 836352s-
684288t2- 76032t+760320,983808s2t+1043712i- 8711424st+
57
7803648s+684288t3+1119744t2+7043328t- 8847360,4790016s3-
6983424s2t-1126656s2 -15667200st + 17556480s+ 1430784t2+
20597760t- 21219840,6158592s3-19660032s2t-12780288i+
74437632st- 62152704s- 4790016e- 13996800e- 44987584t+
68774400;
S9 = -84ie +7716st-14004s- 7632t+14004,- 84se+1056st-1692s-
972t+ 1692,- 252s2t- 84st2+ 3360st- 4284s- 3024t+4284,6i -
57s+ 6t+ 51;
SlO= - 2209it3+ 7359ie - 4800it - 350i +2225st3- 7425se+ 4800st+
400s,- 2209it3- 732s2t2+3291s2t+2225st3+750se- 3375st,
168ie-168it - i -168se+168st+7,
24it2- 24it - 24st2+24st+1;
S11= -2209it3- 732ie+ 3291s2t+2225st3+750se- 3375st,
2209s2t3- 7359ie+4800it+350s2- 2225st3+7425se- 4800st- 400s,
168ie -168it +S2-168se +168st+7,
24s2e- 24s2t- 24st2+ 24st+ 1;
S12= 2209it3- 7359it2+4800it+350i - 2225st3+7425st2- 4800st- 400s,
2209ie+732ie- 3291s2t- 2225st3- 750se+3375st,
168ie -168it - S2-168se +168st+ 7,
24it2 - 24s2t- 24st2+24st+1;
S13=2209s2t3+732ie- 3291it - 2225se- 750st2+3375st,
- 2209s2t3+7359ie- 4800s2t- 350s2+2225st3- 7425st2+4800st+400s,
-2209it3 +7359s2e- 4800it- 350i +2225st3- 7425se+4800st+400s,
24s2t2- 24it - 24st2+24st+1;
58
814 = 73682e-11182t2- 600it - 25i - 7448t3+1448e+6008t+32t3-132e +
100,- 2072it3+171982e+378it +20648t3-17288t2- 3368t+32t3+
36t2-168t,54ie - 3682t2-1882t+ i - 548e+368t2+188t- 68+6,
18it3-12ie - 682t-188e +128e+68t+1;
815 = - 207282t3+ 171982t2+ 37882t+ 20648t3- 17288e- 3368t+ 32t3+
36t2-168t, -100 - 32e +25i - 73682t3- 6008t+ 132e-1448t2+
7448t3+ 60082t+11182t2,5482t3- 1882t- 3682t2+ i - 548t3+368e +
188t- 68+6,1882t3-1282t2- 6s2t-188e +128e+68t+1;
816 = - 736it3 + 111it2+ 60082t+ 25i + 7448e-1448e - 6008t- 32t3+
132t2-100, 207282t3-171982t2- 37882t- 20648t3+17288t2+ 3368t- 32t3-
36t2+ 168t,54ie - 36it2 -18it + i - 548t3+ 368t2+ 168t- 68+ 6,
18it3 -1282t2- 682t-188e +128t2+ 68t+ 1;