PageHeader : Funkcialaj Ekvacioj, 24 (1981), 167-186 Title : Spectral Matrices for First and Second Order Selfadjoint Title : Ordinary Differential Operators with Title : Short Range Potentials AuthorInfo : By AuthorInfo : Seiichi ITATSU & Hitoshi KANETA AuthorInfo : (Shizuoka University and Nagoya University, Japan) section : §0. Introduction section : §1. The spectral matrix for $\tilde{L}$ section : §2. Representation of the spectral matrix in terms of $\Phi$ section : §3. The spectral matrix for $\mathrm{L}$ section : References