本文用Ｌａｎｇ－Ｗｅｉｌ的一个经典结果证明了在一定维数限制下充分大域上平面代数曲线上ＭＤＳ码的主猜想成立。

By the using of a classical theorem of Lang S. and Weil A., we prove thatfor the geometric MDS codes from plane curves, the main conjecture is true when thedimensions of codes are restricted in certain range and the ground field is sufficientlylarge.