Excellent codes from modular curves
STOC '01 Proceedings of the thirty-third annual ACM symposium on Theory of computing
Rational Points on Curves over Finite Fields: Theory and Applications
Rational Points on Curves over Finite Fields: Theory and Applications
Algebraic-Geometric Codes
IEEE Transactions on Information Theory
Nonlinear codes from algebraic curves improving the Tsfasman-Vladut-Zink bound
IEEE Transactions on Information Theory
Excellent nonlinear codes from algebraic function fields
IEEE Transactions on Information Theory
On improved asymptotic bounds for codes from global function fields
Designs, Codes and Cryptography
Improvements on parameters of algebraic-geometry codes from Hermitian curves
IEEE Transactions on Information Theory
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For a prime power q, let @a"q be the standard function in the asymptotic theory of codes, that is, @a"q(@d) is the largest asymptotic information rate that can be achieved for a given asymptotic relative minimum distance @d of q-ary codes. In recent years the Tsfasman-Vladut-Zink lower bound on @a"q(@d) was improved by Elkies, Xing, and Niederreiter and Ozbudak. In this paper we show further improvements on these bounds by using distinguished divisors of global function fields.