after his death in 1984 his books continued to be published such as partial differential equations (1985), selective computation (1985), methods in approximation (1986), and wave propagation: an invariant imbedding approach (1986).
Repeat this setence, but with the correct capitalization.
After his death in 1984 his books continued to be published such as Partial differential equations (1985), Selective computation (1985), Methods in approximation (1986), and Wave propagation: An invariant imbedding approach (1986).