2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/169264In this note, we compute the Hadamard coefficients of (algebraically) integrable Schrodinger operators in two dimensions. These operators first appeared in [BL] and [B] in connection with Huygens' principle, and our result completes, in a sense, the investigation initiated in those papers.Final version; 8 pagesMathematical Physics32W30, 35K15, 58J72text