Rank one perturbations at infinite coupling in Pontryagin spaces
Rank one perturbations at infinite coupling in Pontryagin spaces
复制标题
庞特里亚金空间中无限耦合的一级扰动
DOI:
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发表时间:
2004
期刊:
影响因子:
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通讯作者:
Yuri Shondinc
中科院分区:
文献类型:
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作者:
Yuri Shondinc
In this paper we relate the operators in the operator representations of a generalized Nevanlinna function N ð z Þ and of the function (cid:4) N ð z Þ (cid:4) 1 under the assumption that z ¼ N is the only (generalized) pole of nonpositive type. The results are applied to the Q -function for S and H and the Q -function for S and H N ; where H is a self-adjoint operator in a Pontryagin space with a cyclic element w ; H N is the self-adjoint relation obtained from H and w via a rank one perturbation at infinite coupling, and S is the symmetric operator given by S ¼ H - H N : r 2003 Elsevier Inc. All rights reserved. MSC: