Complete abstract differential equations of elliptic type with general Robin boundary conditions, in UMD spaces

none5siIn this paper we prove some new results concerning a complete abstract second-order differential equation with general Robin boundary conditions. The study is developped in UMD spaces and uses the celebrated Dore-Venni Theorem. We prove existence, uniqueness and maximal regularity of the strict solution. This work completes previous one [3] by authors; see also [11].noneM. Cheggag; A. Favini; R. Labbas; S. Maingot; A. MedeghriM. Cheggag; A. Favini; R. Labbas; S. Maingot; A. Medeghr