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arXiv 0803.1096cs.ITmath.IT
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向量丛代数几何码及其译码

Algebraic-geometric codes from vector bundles and their decoding

Valentin Savin

摘要:

代数几何码可以通过在代数曲线的一组不同的有理点上计算某组函数来构造。被求值的函数集是给定除数的线性空间,或者等价地,是给定线丛的截面集。利用代数曲线上的任意秩向量丛,我们提出了上述构造的自然推广。我们的代码也可以被看作是经典的代数几何码的交织版本。我们表明,布朗,明德和Shokrollahi的算法可以扩展到这一类新的代码,它纠正任何数量的错误高达$t^{*} - g/2$,其中$t^{*}$是设计的纠正能力的代码和$g$是曲线属。

英文摘要:

Algebraic-geometric codes can be constructed by evaluating a certain set of functions on a set of distinct rational points of an algebraic curve. The set of functions that are evaluated is the linear space of a given divisor or, equivalently, the set of section of a given line bundle. Using arbitrary rank vector bundles on algebraic curves, we propose a natural generalization of the above construction. Our codes can also be seen as interleaved versions of classical algebraic-geometric codes. We show that the algorithm of Brown, Minder and Shokrollahi can be extended to this new class of codes and it corrects any number of errors up to $t^{*} - g/2$, where $t^{*}$ is the designed correction capacity of the code and $g$ is the curve genus.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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