Rp. Agarwal et D. Oregan, 2ND-ORDER BOUNDARY-VALUE-PROBLEMS OF SINGULAR TYPE, Journal of mathematical analysis and applications (Print), 226(2), 1998, pp. 414-430
Positive solutions are established for the singular second-order bound
ary value problem y '' + phi(t)f(t, y, y') = 0, 0 < t < 1 y(0) = y'(1)
= 0. Singularities at (i) y = 0 and y' = 0, (ii) y = 0 but not y' = 0
, and (iii) y' = 0 but not y = 0 are discussed separately. (C) 1998 Ac
ademic Press.