Spectral parameter power series method for discontinuous coefficients

Herminio Blancarte, Hugo M. Campos, Kira V. Khmelnytskaya

Let (a,b) be a finite interval and 1/p, q, r be functions from L1(a,b). We show that a general solution (in the weak sense) of the equation (pu')'+qu = zru on (a,b) can be construc…