The main purpose of the present note is to establish the essential equivalence of the adjoint of a semilinear map defined
through the Fonte structure between a pair of Banach spaces and the adjoint of the same map defined by Pian and the present
author.
Keywords PACS 03.65.Db Functional analytical methods - PACS 02.30 Function theory - analysis - PACS 02.90 Other topics in mathematical methods in physics