On the multiplicity of Darlington realizations of contractive matrix-valued functions
We obtain a unique expression for a Darlington realization of a contractive matrix-valued function S(z)ε{lunate}Lτ, valid for the three following cases: (a)S(z) is inner: (b) S(z) is not inner and det[In - S*(ξ) S(ξ)] ≠ 0 a.e.: (c) S(z) is not inner and det[In - S*( 1 z) S(z)] = 0 (z ε{lunate} D). O...
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Autores principales: | Cortina, E., D'Attellis, C.E. |
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Formato: | JOUR |
Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_0022247X_v125_n2_p331_Cortina |
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