Abstract
We consider the Emden‐Fowler equation x” = ‐q(t)|x|2εx, ε
> 0, in the interval [a,b]. The coefficient q(t) is a positive valued continuous function. The Nehari characteristic number An associated with the Emden‐Fowler equation coincides with a minimal value of the functional [] over all solutions of the boundary value problem
x” = ‐q(t)|x|2εx, x(a) = x(b) = 0, x(t) has exactly (n ‐ 1) zeros in (a, b).
The respective solution is called the Nehari solution. We construct an example which shows that the Nehari extremal problem may have more than one solution.