The existence and uniqueness of the strong solution for a multitime evolution equation with nonlocal initial conditions are proved. The proof is essentially based on a priori estimates and on the density of the range of the operator generated by the considered problem.
"On a Class of Multitime Evolution Equations with Nonlocal Initial Conditions." Abstr. Appl. Anal. 2007 1 - 26, 2007. https://doi.org/10.1155/2007/16938