S. Stanek, LERAY-SCHAUDER DEGREE METHOD IN FUNCTIONAL BOUNDARY-VALUE-PROBLEMS DEPENDING ON THE PARAMETER, Mathematische Nachrichten, 164, 1993, pp. 333-344
Using the Leray-Schauder degree method sufficient conditions for the o
ne-parameter boundary value problem x'' = f (t, x, x', lambda), alpha(
x) = A, x(0) - x(1) = B, x'(0) - x'(1) = C, are stated. The applicatio
n is given for a class of functional boundary value problems for nonli
near third-order functional differential equations depending on the pa
rameter.