This paper discusses the stability of solutions to a class of Cauchy p
roblems for Laplace equations under two kinds of nonclassical circumst
ances. By means of conformal mapping and Tikhonov, Luan Wengui and Yam
amoto's methods for solving ill-posed problems respectively, the stabi
lity estimations of weighted Holder type and logarithmic type, have be
en obtained accordingly.