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arXiv math/0609198math.CAcs.NAmath.NA
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Magnus级数的收敛性

Convergence of the Magnus series

Per Christian Moan, Jitse Niesen

AI总结:

本文研究线性常微分方程中Magnus级数的收敛性,给出了一个改进的充分条件。

摘要:

Magnus级数是在线性常微分方程研究中出现的一个无穷级数。如果该级数收敛,则其和的矩阵指数等于微分方程的基本解。本文考虑的问题是:该级数何时收敛?主要结果建立了一个收敛的充分条件,该条件改进了先前的几个结果。

英文摘要:

The Magnus series is an infinite series which arises in the study of linear ordinary differential equations. If the series converges, then the matrix exponential of the sum equals the fundamental solution of the differential equation. The question considered in this paper is: When does the series converge? The main result establishes a sufficient condition for convergence, which improves on several earlier results.

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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