ANZIAM J.
44 (2003), 583-590
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A variation-of-constants formula for a linear abstract evolution equation in Hilbert space
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Hanzhong Wu
Department of Mathematics
Fudan University
Shanghai 200433
P. R. China
hzwu@fudan.edu.cn
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Abstract
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A variation-of-constants formula is obtained for
a linear abstract evolution equation in Hilbert
space with unbounded perturbation and free term.
As an application, the state of the abstract
controlled system with unbounded mixed controls
is explicitly given.
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