A note on towers of function fields over finite fields

摘要

For a tower F-1 subset of or equal to F-2 subset of or equal to ... Of algebraic function fields F-i/F-q, define lambda := lim(i-->infinity) N(F-i)/g(F-i), where N(F-i) is the number of rational places and g(F-i) is the genus of F-i/F-q. The purpose of this note is to calculate lambda for a class of towers which was studied in [1], [2] and [3]. [References: 4]