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Dergiler / Sigma Mühendislik ve Fen Bilimleri Dergisi / 2026 / Volume: 38 Issue: 3

SPECTRA AND PSEUDOSPECTRA OF THE DIRECT SUM OPERATORS

Zameddin I. Ismaılov(Karadeniz Technical University, Department of Mathematics)0000-0001-5193-5349
Pembe Ipek Al(Karadeniz Technical University, Department of Mathematics)0000-0002-6111-1121
Sayfa
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Yayın Tarihi
2021-10-05
DOI
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Also, the analogous relations of some numerical characteristics (spectral and pseudospectral radii) of such operators have been investigated.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:In this paper, the relationships between spectrum and pseudospectrum of the direct sum of linear operators in the direct sum of Hilbert spaces and its coordinate operators have been researched.
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Temel Bulgular & Veri:In this paper, the relationships between spectrum and pseudospectrum of the direct sum of linear operators in the direct sum of Hilbert spaces and its coordinate operators have been researched.
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Sonuç & Katkı:Also, the analogous relations of some numerical characteristics (spectral and pseudospectral radii) of such operators have been investigated.
🔬Tür:Research Article
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Direct sum of operators · spectrum · pseudospectrum

Abstract

In this paper, the relationships between spectrum and pseudospectrum of the direct sum of linear operators in the direct sum of Hilbert spaces and its coordinate operators have been researched. Also, the analogous relations of some numerical characteristics (spectral and pseudospectral radii) of such operators have been investigated.

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Bu Makaleye Atıf Yap

Ismaılov, Z. I., Al, P. I. (2021). SPECTRA AND PSEUDOSPECTRA OF THE DIRECT SUM OPERATORS. Sigma Mühendislik ve Fen Bilimleri Dergisi, Volume: 38 Issue: 3. https://ajindex.com/articles/1344800

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Kaynakça (24)

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