Resumen de Relation between the boundary point spectrum of a generator and of its adjoint

José Manuel Mazón Ruiz , Fuensanta Andreu Vaíllo

• In this paper we get some relations between the boundary point spectrum of the generator A of a C0-semigroup and the generator A* of the dual semigroup. This relations combined with the results due to Lyubich-Phong and Arendt-Batty, yield stability results on positive C0-semigroups.