dual isomorphism
1.The authors discuss problems of multipliers and isomorphism of WCC-Banach algebras and give a necessary and suffcient condion for a linear map to be a weakly compact multiplier, and prove a isomorphism theorem on second dual algebras of WCC - Banach algebras.
2.In this paper we analyse the isomorphism of polynomial rings between time domainand frequency domain using the Discrete Fourier Transform (DFT)). A new approach hasbeen proposed to generate the dual code of a cyclic code by its identity from another pointof view.
