Journals / Adıyaman Üniversitesi Fen Bilimleri Dergisi / 2022 / Cilt: 12 - Sayı: 1

New Weyl-Type Inequalities by Multiplicative Injective and Surjective s-Numbers of Operators in Reflexive Banach Spaces

Yansımalı Banach Uzaylarda Operatörlerin Çarpımsal İnjektiv ve Surjektiv s-Sayıları ile Yeni Weyl-Tipi Eşitsizlikleri

Pages
40–55
Publication Date
2022-10-12
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

So, new Weyl-type inequalities are investigated for both dual 𝑠-number sequences and dual operators.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this work, two problems are investigated.
📊
Key Findings & Data:In general, Weyl-type inequalities of operators in complex reflexive Banach spaces are discussed.
💡
Conclusion & Impact:So, new Weyl-type inequalities are investigated for both dual 𝑠-number sequences and dual operators.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this work, two problems are investigated. In general, Weyl-type inequalities of operators in complex reflexive Banach spaces are discussed. First, we obtained the Weyl-type inequalities using arbitrary multiplicative surjective and injective 𝑠-numbers that are dual of each other. Second, we introduced the Weyl-type inequalities by multiplicative injective and surjective 𝑠- numbers under certain conditions for 𝑆 and 𝑆^' operators in complex reflexive Banach space. So, new Weyl-type inequalities are investigated for both dual 𝑠-number sequences and dual operators.

Özet

Bu çalışmada iki problem incelenmiştir. Genel olarak, kompleks yansımalı Banach uzaylarında operatörlerin Weyl-tipi eşitsizlikleri üzerinde durulmuştur. İlk olarak, birbirinin duali olan keyfi çarpımsal surjektif ve injektif 𝑠-sayılarını kullanarak Weyl-tipi eşitsizlikler elde edilmiştir. İkinci olarak, kompleks yansımalı Banach uzayındaki 𝑆 ve 𝑆$ operatörleri için belirli koşullar altında çarpımsal injektif ve surjektif 𝑠-sayıları ile Weyl-tipi eşitsizlikler ifade edilmiştir. Böylece hem dual 𝑠-sayı dizileri hem de dual operatörler için yeni Weyl-tipi eşitsizlikleri araştırılmıştır.

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Cite This Article

CONA, L. (2022). New Weyl-Type Inequalities by Multiplicative Injective and Surjective s-Numbers of Operators in Reflexive Banach Spaces. Adıyaman Üniversitesi Fen Bilimleri Dergisi, Cilt: 12 - Sayı: 1, 40–55. https://ajindex.com/articles/428394

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References (18)

  1. Pietsch, A., 𝑠-number of operators in Banach spaces, Studia Math., 51, 201-233, 1974
  2. Weyl, H., Inequalities between two kinds of eigenvalues of a linear transformation, Proceedings of National Academy of Sciences USA, 35, 408-411, 1949
  3. Pietsch, A., Weyl numbers and eigenvalues of operators in Banach spaces, Mathematische Annalen, 247, 149-168, 1980
  4. Carl, B., Hincichs, A., Optimal Weyl-type inequalities for operators in Banach spaces, Positivity, 11, 41-55, 2007
  5. Pietsch, A., Eigenvalues and 𝑠-numbers, Cambridge University Press, 1987
  6. König, H., Eigenvalues of compact operators with applications to integral operators, Linear Algebra and its Applications, 84, 111-122, 1986
  7. König, H., Eigenvalues of operators and aplication, Handbook of Geometry of Banach Spaces, North-Holland, Amsterdam, 1, 941-974, 2001
  8. Carl, B., On a Weyl inequalities of operators in Banach spaces, Proceedings of the American Mathematical Society, 137, 155-159, 2009
  9. Carl, B., Hincichs, A., On s-numbers and Weyl inequalities of operators in Banach spaces, The Bulletin of the London Mathematical Society, 41, 2, 332-340, 2009
  10. Kochubei, A.N., Symmetric Operators and Nonclassical Specktral Problems, Matematicheskie Zametki, 25, 425-434, 1979
  11. Barramov, E., Öztürk Mert, R., Ismailov, Z.I., Selfadjoint Extensions of a Singular Differential Operators, Journal of Mathematical Chemistry, 50, 1100-1110, 2012
  12. Ismailov, Z.I, Cona L., Cevik, E.O., Guler, B.O., Weyl Numbers of Diagonal Matrices, AIP Conference Proceedings, Vol. 1611, 296-299, 2014
  13. Ismailov, Z.I, Cona L., Cevik, E.O., Gelfand Numbers of Diagonal Matrices, Hacettepe Journal of Mathematics and Statistics, 44(1), 75-81, 2015
  14. Pietsch, A., Operator ideals, North Holland, Amsterdam, New York, Oxford, 1980
  15. Pietsch, A., History of Banach spaces and linear operators, Birkhäuser, 2007
  16. Timoshenkox, A., Theory of elastic stability, Mc Grow-Hill, New York, 1961
  17. Ipek Al, P., Ismailov, Z.I., Lorentz-Schatten characteristic of compact inverses of first order normal differential operators, The Mediterranean International Conference of Pure Applied Mathematics and Related Areas (MICOPAM 2018), 200-203, 2018
  18. Ipek Al, P., Ismailov, Z.I., Singular numbers of lower triangular one-band block operator matrices, International Conference on Mathematics “An Istanbul Meeting for World Mathematicians” Minisymposium on Approximation Theory Minisymposium on Math Education (I