摘要
A topological structure, as a subset of [0, 2π)L × ℝ+n-11, is proposed for the set of quadratic Lyapunov functions (QLFs) of a given stable linear system. A necessary and sufficient condition for the existence of a common QLF of a finite set of stable matrices is obtained as the positivity of a certain integral. The structure and the conditions are considerably simplified for planar systems. It is also proved that a set of block upper triangular matrices share a common QLF, iff each set of diagonal blocks share a common QLF.
源语言 | 英语 |
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页(从-至) | 885-890 |
页数 | 6 |
期刊 | IEEE Transactions on Automatic Control |
卷 | 48 |
期 | 5 |
DOI | |
出版状态 | 已出版 - 5月 2003 |
已对外发布 | 是 |