... considered.Next, we consider the eigenvalues of the linear problemLu λu, u ∈ E. 1.7We call the set of eigenvalues of 1.7 the spectrum of L and denote it by σL. The followinglemmas or similar ... Σνkdenote the closure of set of those solutions of 1.1,1.2 which belong to Φνk. The main results of this paper are the following.Theorem 1.5. Let (A1)–(A4) hold.a If f∞ 0, then there ... that ylconsists of a sequence of positive and negative bumps, together with atruncated bump at the right end of the interval 0, 1, with the following properties ignoring the truncated bumpsee,...