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arXiv 1806.03049cs.LO
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Lerch定理的HOL光形式化

Formalization of Lerch's Theorem using HOL Light

Adnan Rashid, Osman Hasan

摘要:

拉普拉斯变换是一种代数方法,广泛用于分析物理系统,通过求解微分方程建模其动态或通过评估其传递函数。首先用微分方程建立系统的动力学模型,然后利用拉普拉斯变换将微分方程转化为等价的代数方程。这些方程可以进一步简化,以获得系统的传递函数或在频域中求出微分方程的解。其次,拉普拉斯变换的唯一性提供了这些微分方程在时域中的解。传统的基于拉普拉斯变换的分析技术,即,纸笔证明和计算机模拟方法由于其固有的局限性而容易出错,因此不适合于系统的分析。高阶逻辑定理证明可以克服这些技术的局限性,并可以确保系统的准确分析。在本文中,我们扩展了拉普拉斯变换的高阶逻辑形式化,其中包括拉普拉斯变换的形式化定义及其各种经典性质的验证。本文的主要贡献之一是Lerch定理的形式化,该定理描述了Laplace变换的唯一性,因此在频域求解线性微分方程中起着至关重要的作用。为了说明,我们提出了一个$4$ - $π$软错误串扰模型,这是广泛使用的纳米技术,如集成电路(IC)的形式化分析。

英文摘要:

The Laplace transform is an algebraic method that is widely used for analyzing physical systems by either solving the differential equations modeling their dynamics or by evaluating their transfer function. The dynamics of the given system are firstly modeled using differential equations and then Laplace transform is applied to convert these differential equations to their equivalent algebraic equations. These equations can further be simplified to either obtain the transfer function of the system or to find out the solution of the differential equations in frequency domain. Next, the uniqueness of the Laplace transform provides the solution of these differential equations in the time domain. The traditional Laplace transform based analysis techniques, i.e., paper-and-pencil proofs and computer simulation methods are error-prone due to their inherent limitations and thus are not suitable for the analysis of the systems. Higher-order-logic theorem proving can overcome these limitations of these techniques and can ascertain accurate analysis of the systems. In this paper, we extend our higher-order logic formalization of the Laplace transform, which includes the formal definition of the Laplace transform and verification of its various classical properties. One of the main contributions of the paper is the formalization of Lerch's theorem, which describes the uniqueness of the Laplace transform and thus plays a vital role in solving linear differential equations in the frequency domain. For illustration, we present the formal analysis of a $4$-$π$ soft error crosstalk model, which is widely used in nanometer technologies, such as, Integrated Circuits (ICs).

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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