The Number of Occurrences of Letters Versus Their Distribution in EOL Languages ; CU-CS-030-73
Andrzej Ehrenfeucht, Rozenberg, Grzegorz · CU Scholar (University of Colorado Boulder) · 1973
A characterization theorem is given for a class of developmental languages. The theorem binds together the number of occurrences of letters in the words of the given language with the distribution of these letters.