TY - RPRT TI - Implementing a unified solver for nonlinearly constrained optimization AU - Vanaret, Charlie [Argonne National Laboratory (ANL), Lemont, IL (United States); Zuse-Institut Berlin (Germany)] (ORCID:0000000211317631) AU - Leyffer, Sven [Argonne National Laboratory (ANL), Lemont, IL (United States)] (ORCID:0000000188395876) PY - 2026 DO - 10.1007/s12532-026-00310-9 UR - https://www.osti.gov/biblio/3378213 ID - 3378213 ER -