Resumen de Centers for Trigonometric Abel Equations

Anna Cima , Armengol Gasull i Embid , Francesc Mañosas Capellades

• In this paper we introduce the notion of strongly persistent centers, together with the condition of the annulation of some generalized moments, for Abel differential equations with trigonometric coefficients as a natural candidate to characterize the centers of composition type for these equations. We also recall several related concepts and discuss the differences between the trigonometric and the polynomial cases.