... nay xet luo'c do sai ph an, nghien crru su' h9i tu va dinh gii sai so cd a ngh iem baitoan doi vo'i mot161>phuong trlnh vi ph an phi t uyeri lcai ellip vo'i ve phrii ... phu'o'ngtrlnh vi ph an rien g void ir kien kh6ng tro'n (xem [10]' [2)). Phuo-ng ph ap xfi p xl giai mot so b ai toan doi vo'i cac phtro'ng trlnh vi ph an phi tuy en vci ... Di'eukhi€nboc, T. 17,S.1 (2001), 10-16DIFFERENCE SCHEMES OF GENERALIZED SOLUTIONS FOR A CLASSOF ELLIPTIC NON-LINEAR DIFFERENTIAL EQUATIONSHOANG DINH DUNGAbstract. It is known (see [1], [2],...