Identification of the Domain of the Sturm–Liouville Operator on a Star Graph

This article is devoted to the unique recovering of the domain of the Sturm–Liouville operator on a star graph. The domain of the Sturm–Liouville operator is uniquely identified from the set of spectra of a finite number of specially selected canonical problems. In the general case, the domain of th...

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Main Authors: Baltabek Kanguzhin, Ghulam Hazrat Aimal Rasa, Zhalgas Kaiyrbek
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/13/7/1210
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author Baltabek Kanguzhin
Ghulam Hazrat Aimal Rasa
Zhalgas Kaiyrbek
author_facet Baltabek Kanguzhin
Ghulam Hazrat Aimal Rasa
Zhalgas Kaiyrbek
author_sort Baltabek Kanguzhin
collection DOAJ
description This article is devoted to the unique recovering of the domain of the Sturm–Liouville operator on a star graph. The domain of the Sturm–Liouville operator is uniquely identified from the set of spectra of a finite number of specially selected canonical problems. In the general case, the domain of the definition of the original operator can be specified by integro-differential linear forms. In the case when the domain of the Sturm–Liouville operator on a star graph corresponds to the boundary value problem, it is sufficient to choose only finite parts of the spectra of canonical problems for a unique identification of the boundary form. Moreover, the above statement is valid only for a symmetric star graph.
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spelling doaj.art-b2acae6b38b84ea6916465dc41f0b37d2023-11-22T05:08:50ZengMDPI AGSymmetry2073-89942021-07-01137121010.3390/sym13071210Identification of the Domain of the Sturm–Liouville Operator on a Star GraphBaltabek Kanguzhin0Ghulam Hazrat Aimal Rasa1Zhalgas Kaiyrbek2Institute of Mathematics and Mathematical Modeling, Al-Farabi Kazakh National University, Almaty 050040, KazakhstanInstitute of Mathematics and Mathematical Modeling, Al-Farabi Kazakh National University, Almaty 050040, KazakhstanInstitute of Mathematics and Mathematical Modeling, Al-Farabi Kazakh National University, Almaty 050040, KazakhstanThis article is devoted to the unique recovering of the domain of the Sturm–Liouville operator on a star graph. The domain of the Sturm–Liouville operator is uniquely identified from the set of spectra of a finite number of specially selected canonical problems. In the general case, the domain of the definition of the original operator can be specified by integro-differential linear forms. In the case when the domain of the Sturm–Liouville operator on a star graph corresponds to the boundary value problem, it is sufficient to choose only finite parts of the spectra of canonical problems for a unique identification of the boundary form. Moreover, the above statement is valid only for a symmetric star graph.https://www.mdpi.com/2073-8994/13/7/1210boundary conditionsboundary value problemscanonical problems
spellingShingle Baltabek Kanguzhin
Ghulam Hazrat Aimal Rasa
Zhalgas Kaiyrbek
Identification of the Domain of the Sturm–Liouville Operator on a Star Graph
Symmetry
boundary conditions
boundary value problems
canonical problems
title Identification of the Domain of the Sturm–Liouville Operator on a Star Graph
title_full Identification of the Domain of the Sturm–Liouville Operator on a Star Graph
title_fullStr Identification of the Domain of the Sturm–Liouville Operator on a Star Graph
title_full_unstemmed Identification of the Domain of the Sturm–Liouville Operator on a Star Graph
title_short Identification of the Domain of the Sturm–Liouville Operator on a Star Graph
title_sort identification of the domain of the sturm liouville operator on a star graph
topic boundary conditions
boundary value problems
canonical problems
url https://www.mdpi.com/2073-8994/13/7/1210
work_keys_str_mv AT baltabekkanguzhin identificationofthedomainofthesturmliouvilleoperatoronastargraph
AT ghulamhazrataimalrasa identificationofthedomainofthesturmliouvilleoperatoronastargraph
AT zhalgaskaiyrbek identificationofthedomainofthesturmliouvilleoperatoronastargraph