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arXiv 1306.6264cs.ITmath.IT
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图形代码:基础

Codes on Graphs: Fundamentals

G. David Forney

摘要:

本文利用初等群论,包括基本群对偶理论,发展了一般图上线性码和群码实现的基本理论。主要的新的和扩展的结果包括:正规实现对偶;实现片段及其连接的系统论性质分析;无圈码的“极小= trim and proper”定理;除接口节点外的所有约束码都可假定为trim and proper,以及循环实现的有趣部分是它的“2-核”;碎片的可观测性和可控制性的概念,以及相关的测试;状态修整和可控制性之间的关系,以及对偶状态修整和可观测性。

英文摘要:

This paper develops a fundamental theory of realizations of linear and group codes on general graphs using elementary group theory, including basic group duality theory. Principal new and extended results include: normal realization duality; analysis of systems-theoretic properties of fragments of realizations and their connections; "minimal = trim and proper" theorem for cycle-free codes; results showing that all constraint codes except interface nodes may be assumed to be trim and proper, and that the interesting part of a cyclic realization is its "2-core;" notions of observability and controllability for fragments, and related tests; relations between state-trimness and controllability, and dual state-trimness and observability.

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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