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The classical criterion of asymptotic stability of the zero solution of equations x' = f (t, x) is that there exists a function V(t, x), a(parallel to x parallel to) <= V(t, x) <= b(parallel to x parallel to) for some a, b is an element of K, such that V(t, x) <= -c(parallel to x parallel to) for some c is an element of K. In this paper we prove that if f(t, x) is bounded, (t, x) is uniformly continuous and bounded, then the condition that V(t, x) <= -c(parallel to x parallel to) can be weakened and replaced by V(t, x) <= 0 and {(t, x): x not equal 0, V(t, x) = 0} contains no complete trajectory of x' = f (t, x), t is an element of [-T, T], where V(t, x) = lim(k ->infinity) V(t + t(k), x), f(t, x) = lim(k ->infinity) f (t + t(k), x) uniformly for (t, x) is an element of [-T T] x B-H. (c) 2006 Elsevier Inc. All rights reserved.
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JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS
ISSN: 0022-247X
Year: 2007
Issue: 2
Volume: 326
Page: 1379-1382
0 . 8 7 2
JCR@2007
1 . 2 0 0
JCR@2023
ESI Discipline: MATHEMATICS;
JCR Journal Grade:1
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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