Characterization and Asymptotic Properties of Galois Self-Dual 2-Quasi Constacyclic Codes over Finite Fields

The paper characterizes the algebraic structure of 2-quasi λ-constacyclic codes over finite fields and their Galois self-dual properties. It also investigates the asymptotic goodness of Hermitian and Euclidean self-dual 2-quasi λ-constacyclic codes.