Abstract
This paper presents a generalized Bezout theorem which can be used to determine a tighter lower bound of the number of distinct points of intersection of two or more plane curves. A new approach to determine a lower bound on the minimum distance for algebraic-geometric codes defined from a class of plane curves is introduced, based on the generalized Bezout theorem. Examples of more efficient linear codes are constructed using the generalized Bezout theorem and the new approach. For d=4, the linear codes constructed by the new construction are better than or equal to the known linear codes. For d/spl ges/5, these new codes are better than the known AG codes defined from whole spaces. The Klein codes [22, 16, 5] and [22, 15, 6] over GF(2/sup 3/), and the improved Hermitian code [64, 56, 6] over GF(2/sup 4/) are also constructed.
Published Version
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