A semigroup approach to the time dependent parabolic initial-boundary value problem
Alessandra Lunardi, Eugenio Sinestrari, Wolf von Wahl · Differential and Integral Equations · 1992
In this paper, a general initial-boundary value problem for a higher order linear parabolic equation with time dependent coefficients and nonhomogeneous data is studied via the abstract results obtained from a generalization of the classical theory of analytic semigroups of linear operators.