2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/61139This paper establishes the correctness of a conjecture of Bertram-Feinberg and Mukai for a special class of globally generated rank-two bundles with canonical determinant over a generic Riemann surface of genus at least four.Latex2e file, 23 pages, corrects missing condition in statement of the main theorem in the previous version, thereby correcting gap in proofAlgebraic Geometrytext