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Abstract:
In this paper, by introducing the concept of topological equivalence on measure chain, we investigate the relationship between the linear system xΔ = A (t) x and the nonlinear system xΔ = A (t) x + f (t, x). Some sufficient conditions are obtained to guarantee the existence of a equivalent function H (t, x) sending the (c, d)-quasibounded solutions of nonlinear system xΔ = A (t) x + f (t, x) onto those of linear system xΔ = A (t) x. Our results generalize the Palmer's linearization theorem in [K.J. Palmer, A generalization of Hartman's linearization theorem, J. Math. Anal. Appl. 41 (1973) 753-758] to dynamic equation measure chains. In the present paper, we give a new analytical method to study the topological equivalence problem on measure chains. As we will see, due to the completely different method to investigate the topological equivalence problem, we have a considerably different result from that in the pioneering work of Hilger [S. Hilger, Generalized theorem of Hartman-Grobman on measure chains, J. Aust. Math. Soc. Ser. A 60 (2) (1996) 157-191]. Moreover, we prove that equivalent function H (t, x) is also ω-periodic when the systems are ω-periodic. Hilger [S. Hilger, Generalized theorem of Hartman-Grobman on measure chains, J. Aust. Math. Soc. Ser. A 60 (2) (1996) 157-191] never considered this important property of the equivalent function H (t, x). © 2007 Elsevier Inc. All rights reserved.
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Source :
Journal of Differential Equations
ISSN: 0022-0396
Year: 2007
Issue: 2
Volume: 235
Page: 527-543
1 . 0 9 7
JCR@2007
2 . 4 0 0
JCR@2023
JCR Journal Grade:1
Cited Count:
SCOPUS Cited Count: 41
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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