Pseudospectral functions of various dimensions for symmetric systems with the maximal deficiency index

We consider first-order symmetric system Jy′ −A(t)y = λ∆(t)y with n×n-matrix coefficients defined on an interval [a, b) with the regular endpoint a. It is assumed that the deficiency indices N± of the system satisfies N− ≤ N+ = n. The main result is a parametrization of all pseudospectral functions...

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Опубліковано в: :Український математичний вісник
Дата:2017
Автор: Mogilevskii, V.I.
Формат: Стаття
Мова:English
Опубліковано: Інститут прикладної математики і механіки НАН України 2017
Онлайн доступ:https://nasplib.isofts.kiev.ua/handle/123456789/169323
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Pseudospectral functions of various dimensions for symmetric systems with the maximal deficiency index / V.I. Mogilevskii // Український математичний вісник. — 2017. — Т. 14, № 2. — С. 220-264. — Бібліогр.: 38 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
id nasplib_isofts_kiev_ua-123456789-169323
record_format dspace
spelling Mogilevskii, V.I.
2020-06-10T15:25:47Z
2020-06-10T15:25:47Z
2017
Pseudospectral functions of various dimensions for symmetric systems with the maximal deficiency index / V.I. Mogilevskii // Український математичний вісник. — 2017. — Т. 14, № 2. — С. 220-264. — Бібліогр.: 38 назв. — англ.
1810-3200
2010 MSC. 34L10,47A06,47E05
https://nasplib.isofts.kiev.ua/handle/123456789/169323
We consider first-order symmetric system Jy′ −A(t)y = λ∆(t)y with n×n-matrix coefficients defined on an interval [a, b) with the regular endpoint a. It is assumed that the deficiency indices N± of the system satisfies N− ≤ N+ = n. The main result is a parametrization of all pseudospectral functions σ(•) of any possible dimension nσ ≤ n by means of a Nevanlinna parameter τ = {C₀ (λ), C₁ (λ)}.
en
Інститут прикладної математики і механіки НАН України
Український математичний вісник
Pseudospectral functions of various dimensions for symmetric systems with the maximal deficiency index
Article
published earlier
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
title Pseudospectral functions of various dimensions for symmetric systems with the maximal deficiency index
spellingShingle Pseudospectral functions of various dimensions for symmetric systems with the maximal deficiency index
Mogilevskii, V.I.
title_short Pseudospectral functions of various dimensions for symmetric systems with the maximal deficiency index
title_full Pseudospectral functions of various dimensions for symmetric systems with the maximal deficiency index
title_fullStr Pseudospectral functions of various dimensions for symmetric systems with the maximal deficiency index
title_full_unstemmed Pseudospectral functions of various dimensions for symmetric systems with the maximal deficiency index
title_sort pseudospectral functions of various dimensions for symmetric systems with the maximal deficiency index
author Mogilevskii, V.I.
author_facet Mogilevskii, V.I.
publishDate 2017
language English
container_title Український математичний вісник
publisher Інститут прикладної математики і механіки НАН України
format Article
description We consider first-order symmetric system Jy′ −A(t)y = λ∆(t)y with n×n-matrix coefficients defined on an interval [a, b) with the regular endpoint a. It is assumed that the deficiency indices N± of the system satisfies N− ≤ N+ = n. The main result is a parametrization of all pseudospectral functions σ(•) of any possible dimension nσ ≤ n by means of a Nevanlinna parameter τ = {C₀ (λ), C₁ (λ)}.
issn 1810-3200
url https://nasplib.isofts.kiev.ua/handle/123456789/169323
citation_txt Pseudospectral functions of various dimensions for symmetric systems with the maximal deficiency index / V.I. Mogilevskii // Український математичний вісник. — 2017. — Т. 14, № 2. — С. 220-264. — Бібліогр.: 38 назв. — англ.
work_keys_str_mv AT mogilevskiivi pseudospectralfunctionsofvariousdimensionsforsymmetricsystemswiththemaximaldeficiencyindex
first_indexed 2025-12-07T18:13:15Z
last_indexed 2025-12-07T18:13:15Z
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