... d":ltdu'<;jctr":lngthai nhdt-deo ta co : Evp= 0 di~u nay d~n de'n<Td= O. Thie't 1~p quail h~ U'ngxli' cho mo hlnh d hai tr":lngthai: tr":lngthai daD h6i va tr":lngthai ... bai roan trong tr<;tngthai bie'n d':lngphing, rhea quail di6m chay deo van Mises. Ke't qua so phan anh dungslf lam vi~c cua v~t li~u d tr':lng thai dan-deo tai b~n. E= ... ThuduQc cac ke't qua v~ danh gia sai so giil'a nghi~m x1lpXlva nghi~m chinhxac. Ke't qua thu duQc d day Ia mQt t6ng quat hoa tuong doi cua cac ke't qua trong [40], [54],...