[3] Kpacнoceльcкий M. A., Kpeйн C. Г.: О6 oднoм клacce meopeм eдuнcmeeннocmu для ypaвнeнuя $y' = f(x, y)$. Уcпexи мaтeм, нayк 11 (1965), 209-213.
[4] Palczewski B.:
On the uniqueness of solutions and the convergence of successive approximations in the Darboux problem under the conditions of the Krasnosielski and Krein type. Ann. Polon. Math. 14 (1964), 183-190.
MR 0161014 |
Zbl 0132.07301