The formal Laplace-Borel transform of Fliess operators and the composition product

The formal Laplace-Borel transform of an analytic integral operator, known as a Fliess operator, is defined and developed. Then, in conjunction with the composition product over formal power series, the formal Laplace-Borel transform is shown to provide an isomorphism between the semigroup of all Fl...

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Main Authors: Yaqin Li, W. Steven Gray
Format: Article
Language:English
Published: Wiley 2006-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Online Access:http://dx.doi.org/10.1155/IJMMS/2006/34217
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author Yaqin Li
W. Steven Gray
author_facet Yaqin Li
W. Steven Gray
author_sort Yaqin Li
collection DOAJ
description The formal Laplace-Borel transform of an analytic integral operator, known as a Fliess operator, is defined and developed. Then, in conjunction with the composition product over formal power series, the formal Laplace-Borel transform is shown to provide an isomorphism between the semigroup of all Fliess operators under operator composition and the semigroup of all locally convergent formal power series under the composition product. Finally, the formal Laplace-Borel transform is applied in a systems theory setting to explicitly derive the relationship between the formal Laplace transform of the input and output functions of a Fliess operator. This gives a compact interpretation of the operational calculus of Fliess for computing the output response of an analytic nonlinear system.
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spelling doaj-art-b7c46c5de8664086ada53ad5ad7ade002025-02-03T06:08:28ZengWileyInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04252006-01-01200610.1155/IJMMS/2006/3421734217The formal Laplace-Borel transform of Fliess operators and the composition productYaqin Li0W. Steven Gray1Department of Electrical and Computer Engineering, University of Memphis, Memphis 38152, TN, USADepartment of Electrical and Computer Engineering, Old Dominion University, Norfolk 23529, VA, USAThe formal Laplace-Borel transform of an analytic integral operator, known as a Fliess operator, is defined and developed. Then, in conjunction with the composition product over formal power series, the formal Laplace-Borel transform is shown to provide an isomorphism between the semigroup of all Fliess operators under operator composition and the semigroup of all locally convergent formal power series under the composition product. Finally, the formal Laplace-Borel transform is applied in a systems theory setting to explicitly derive the relationship between the formal Laplace transform of the input and output functions of a Fliess operator. This gives a compact interpretation of the operational calculus of Fliess for computing the output response of an analytic nonlinear system.http://dx.doi.org/10.1155/IJMMS/2006/34217
spellingShingle Yaqin Li
W. Steven Gray
The formal Laplace-Borel transform of Fliess operators and the composition product
International Journal of Mathematics and Mathematical Sciences
title The formal Laplace-Borel transform of Fliess operators and the composition product
title_full The formal Laplace-Borel transform of Fliess operators and the composition product
title_fullStr The formal Laplace-Borel transform of Fliess operators and the composition product
title_full_unstemmed The formal Laplace-Borel transform of Fliess operators and the composition product
title_short The formal Laplace-Borel transform of Fliess operators and the composition product
title_sort formal laplace borel transform of fliess operators and the composition product
url http://dx.doi.org/10.1155/IJMMS/2006/34217
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