Characterizations of $$k$$ k -comma codes and $$k$$ k -comma intercodes

Abstract

The notions of $$k$$k-comma codes and $$k$$k-comma intercodes are proper generalizations of comma-free codes and intercodes respectively. In this paper, we characterize $$k$$k-comma codes and $$k$$k-comma intercodes by using infix codes and bifix codes. Then, we consider the homomorphism which preserves $$k$$k-comma codes and $$k$$k-comma intercodes.