Abstract
The fixed language of an endomorphism of a free monoid is shown to be method that provides a concide description of the basis of the fixed language. A supplementary disscussion shown that the adult language of an OL scheme is free and provides a simple listing procedure for the basis element.
†This research was supported by Grant MCS-8003348 of the National Science Foundation of the United States of America.
†This research was supported by Grant MCS-8003348 of the National Science Foundation of the United States of America.
Notes
†This research was supported by Grant MCS-8003348 of the National Science Foundation of the United States of America.