... (lIxll = xT x) = 0, khong mftt tinh Tu bai toan ban dfiu ta du'a v~ = bai toan tlm x d€ ctlc ti€u hoa ham m1,1C tieu IIAxl1voi rang buQc IIxll (A.3.3) Ta xet bai toan tlm x thoa minllxll=lllAxll ... theo (A.3.4) thl nghi~m Xl = VYI = Vn-l va X2= VY2 = Vnchinh Ia hai c9t cu6i cling cua V thoa (A.3.3)va cling dam baa rang bU9C IlxI11 Ilvn-111 V~-IVn-1 = va IIX211 IIVnl1 V~Vn = V Ia = = = = ma ... i j mi cho phep thlfc = 1,n, j = 1,k} trongdo i \-I' = mj' v~, J Day Ia tinh d6i ngfiu cd ban, thljc t€ dff du(/c chung minh d buGC6 cua thu?~t loan Bay giOco th~ chung minh du(/c tinh dung...