Please use this identifier to cite or link to this item: http://hdl.handle.net/10525/590

 Title: Commuting Nonselfadjoint Operators and their Characteristic Operator-Functions Authors: Kirchev, K.Borisova, G. Keywords: Operator ColligationComplete Characteristic Operator-FunctionJoint Characteristic FunctionTrunk Issue Date: 1997 Publisher: Institute of Mathematics and Informatics Bulgarian Academy of Sciences Citation: Serdica Mathematical Journal, Vol. 23, No 3-4, (1997), 313p-334p Abstract: In this paper we present some generalizations of results of M. S. Livšic [4,6], concerning regular colligations (A1, A2, H, Φ, E, σ1, σ2, γ, ˜γ) (σ1 > 0) of a pair of commuting nonselfadjoint operators A1, A2 with ﬁnite dimensional imaginary parts, their complete characteristic functions and a class Ω(σ1, σ2) of operator-functions W(x1, x2, z): E → E in the case of an inner function W(1, 0, z) of the class Ω(σ1). ... Description: * Partially supported by Grant MM-428/94 of MESC. URI: http://hdl.handle.net/10525/590 ISSN: 1310-6600 Appears in Collections: Volume 23 Number 3-4

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