Título: MPCC: STRONG STABILITY OF WEAKLY NONDEGENERATE S-STATIONARY POINTS
Ponente: J.-J. Rückmann (University of Bergen, Norway)
Fecha y hora: 05/06/2025, 12:00
Inscripción online (cierre 30 minutos antes del inicio): https://forms.gle/QSUnsTsoAoWwArxcA
Lugar: Sala de Seminarios del Edificio Torretamarit (CIO) y online
Organizador: Juan Parra López
Abstract:
We consider the class of mathematical programs with complementarity constraints (MPCC). Specifically, we focus on strong stability of M- and S-stationary points for MPCC. Kojima introduced this concept for standard nonlinear optimization problems. It refers to several well-posedness properties of the underlying problem. Besides its topological definition, the challenge is to state an algebraic characterization of strong stability. We obtain such a description for S-stationary points whose components of Lagrange vectors corresponding to bi-active constraints do not mutually vanish. We call these points weakly nondegenerate. Moreover, we show that a particular constraint qualification is necessary for strong stability. This is a joint work with Harald Günzel (RWTH Aachen University, Germany) and Daniel Hernandez Escobar (Uppsala University, Sweden).
Keywords:
Mathematical programs with complementarity constraints (MPCC), M- and S-stationarity, strong stability, algebraic characterization, Generalized Mangasarian-Fromovitz constraint qualification.