Yf. Liu, A REGULARITY THEOREM FOR CERTAIN 2NTH-ORDER NONLINEAR DIFFERENTIAL OPERATOR WITH A PARAMETER, Journal of mathematical analysis and applications, 222(2), 1998, pp. 460-483
A regularity theorem for certain 2nth-order nonlinear differential ope
rator B-lambda with the parameter lambda is presented. From it, we obt
ain (n + 3) homeorphism classes regarding the operator B-lambda in the
nonlinear or linear case. This offers a useful and convenient method
for illustrating the two-direction stability properties of some object
s in their moving processes. (C) 1998 Academic Press.