Výsledky vyhledávání - "İpek Al, Pembe"

Akademický článek

On the convergence of some spectral characteristics of the converging operator sequences.

Autor: Bhunia, Pintu, Ipek Al, Pembe, Ismailov, Zameddin I

Publikováno v: Proceedings of the Indian Academy of Sciences: Mathematical Sciences; Jan2024, Vol. 134 Issue 1, p1-15, 15p

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Akademický článek

SPECTRA AND PSEUDOSPECTRA OF THE DIRECT SUM OPERATORS.

Autor: ISMAILOV, Zameddin I.¹ zameddin.ismailov@gmail.com, IPEK AL, Pembe¹

Publikováno v: Sigma: Journal of Engineering & Natural Sciences / Mühendislik ve Fen Bilimleri Dergisi. 2020, Vol. 38 Issue 3, p1251-1259. 9p.

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Akademický článek

Spectral analysis of some classes first-order normal differential operators.

Autor: İPEK AL, Pembe¹ ipekpembe@gmail.com

Publikováno v: Turkish Journal of Mathematics. 2019, Vol. 43 Issue 5, p2308-2326. 19p.

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Akademický článek

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Representation of all maximally accretive differential operators for first order

Autor: ÖZTÜRK MERT, Rukiye, IPEK AL, Pembe, I. ISMAILOV, Zameddin

Publikováno v: Volume: 22, Issue: 2 439-447
Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi

Bu çalışmada, standart teknik kullanılarak, sağ yarı eksende tanımlanan vektör-fonksiyonlarının ağırlıklı Hilbert uzayında birinci mertebeden özel tip lineer diferansiyel-operatör ifadesi tarafından üretilen minimal ve maksimal ope

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=tubitakulakb::51592f66f807c9d09613642dc8a1fb0f
https://dergipark.org.tr/tr/pub/baunfbed/issue/53255/707694

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Boundedly solvability of first order delay differential operators with piecewise constant arguments

Autor: İpek Al, Pembe, Ismailov, Zameddin

Using the methods of operator theory, we investigate all boundedly solvable extensions of a minimal operator generated by first order delay differential-operator expression with piecewise constant argument in the Hilbert space of vector-functions at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3401::d74ae44398353a078539c5fd123209d7
https://hdl.handle.net/11729/2728

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Discreteness of Spectrum of Normal Differential Operators for First Order

Autor: Öztürk Mert, Rukiye, İPEK AL, Pembe, YILMAZ, Bülent, İ. İSMAİLOV, Zameddin

Publikováno v: Volume: 10 67-73
Turkish Journal of Mathematics and Computer Science

In this work, we investigate the discreteness of spectrum of normal extensions in detail. Later on, the asymptotical behavior of eigenvalues of any normal extension has been examined.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=tubitakulakb::129baab2c0479b6b1ce989b255d1a384
https://dergipark.org.tr/tr/pub/tjmcs/issue/42027/451029

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Canonical Type First Order Boundedly Solvable Differential Operators

Autor: ISMAILOV, Zameddin, IPEK AL, Pembe

Publikováno v: Volume: 10 50-55
Turkish Journal of Mathematics and Computer Science

The general information on the degenerate differential equations in Banach spaces can be found in book of A. Favini and A. Yagi [1]. The fundamental interest to such equations are motivated by applications in different fields of life sciences.The sol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=tubitakulakb::ebe5d91df3c49374bc6c52d115fa3307
https://dergipark.org.tr/tr/pub/tjmcs/issue/42027/449579

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Accretive Canonical Type Quasi-Differential Operators for First Order

Autor: IPEK AL, Pembe, ISMAILOV, Zameddin

Publikováno v: Volume: 10 43-49
Turkish Journal of Mathematics and Computer Science

It is known that a linear closed densely defined operator in any Hilbert space is called accretive if its real part is non-negative and maximal accretive if it is accretive and it does not have any proper accretive extension [1].Note that the study o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=tubitakulakb::27b5eb85af6eb8bc94bafe987f1ca990
https://dergipark.org.tr/tr/pub/tjmcs/issue/42027/449107

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Characteristic Numbers of Upper Triangular One-Band Block Operator Matrices

Autor: ÖZTÜRK MERT, Rukiye, İPEK AL, Pembe, I. ISMAİLOV, Zameddin

Publikováno v: Volume: 10 173-177
Turkish Journal of Mathematics and Computer Science

In this work the boundedness and compactness properties of upper triangular one-bandblock operator matrices in the innite direct sum of Hilbert spaces have been studied. We also obtainthe necessary and sucient conditions when these operators belong t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=tubitakulakb::272c48219fc000934f3e77268d112f02
https://dergipark.org.tr/tr/pub/tjmcs/issue/42027/448217

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