Functional Calculus for the Series of Semigroup Generators Via Transference

α
Shawgy Hussein
Shawgy Hussein
σ
Simon Joseph
Simon Joseph
ρ
Ahmed Sufyan
Ahmed Sufyan
Ѡ
Murtada Amin
Murtada Amin
¥
Ranya Tahir
Ranya Tahir
§
Hala Taha
Hala Taha
α Upper Nile University

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Functional Calculus for the Series of Semigroup Generators Via Transference

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Abstract

In this paper, apply an established transference principle to obtain the boundedness of certain functional calculi for the sequence of semigroup generators. It is proved thatif -𝐴𝐴 𝑗𝑗 be the sequence generates 𝐶𝐶 0 -semigroups on a Hilbert space, then for each 𝜀𝜀 > -1 the sequence of operators 𝐴𝐴 𝑗𝑗 has bounded calculus for the closed ideal of bounded holomorphic functions on right half-plane. The bounded of this calculus grows at most logarithmically as(1 + 𝜀𝜀) ↘ 0. As a consequence decay at ∞. Then showed that each sequence of semigroup generator has a socalled (strong) m-bounded calculus for all m ∈ ℕ, and that this property characterizes the sequence of semigroup generators. Similar results are obtained if the underlying Banach space is a UMD space. Upon restriction to so-called 𝛾𝛾 𝑗𝑗 -𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏 semigroups, the Hilbert space results actually hold in general Banach spaces.

References

11 Cites in Article
  1. Markus Haase (2006). The Functional Calculus for Sectorial Operators.
  2. Charles Batty,Markus Haase,Junaid Mubeen (2013). The holomorphic functional calculus approach to operator semigroups.
  3. W Arendt (2004). Semigroups and evolutions: Functional calculus, regularity and kernel estimates.
  4. N Kalton,L Weis (2001). The $H^{\infty}-$ calculus and sums of closed operators.
  5. Peer Kunstmann,Lutz Weis (2004). Maximal L p -regularity for Parabolic Equations, Fourier Multiplier Theorems and $H^\infty$ -functional Calculus.
  6. Markus Haase (2009). A transference principle for general groups and functional calculus on UMD spaces.
  7. Simon Joseph,Ahmed Sufyan,Hala Taha,Ranya Tahir (2019). Transference Principles for the Series of Semigroups with a Theorem of Peller.
  8. M Haase,J (2013). Functional calculus for the of semigroup generators via transference.
  9. Nigel Kalton,: Lutz Weis (2004). The 𝐻𝐻 ∞ -functional calculus and square function estimate.
  10. Hans Zwart (2012). Toeplitz operators and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:msub><mml:mrow><mml:mi mathvariant="script">H</mml:mi></mml:mrow><mml:mrow><mml:mo>∞</mml:mo></mml:mrow></mml:msub></mml:math> calculus.
  11. F Schwenninger,H Zwart (2012). Weakly admissible ℋ ∞ --calculus on reflexive Banach spaces.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Shawgy Hussein. 2019. \u201cFunctional Calculus for the Series of Semigroup Generators Via Transference\u201d. Global Journal of Science Frontier Research - F: Mathematics & Decision GJSFR-F Volume 19 (GJSFR Volume 19 Issue F5): .

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Issue Cover
GJSFR Volume 19 Issue F5
Pg. 57- 84
Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

Keywords
Classification
GJSFR-F Classification: MSC 2010: 47A60
Version of record

v1.2

Issue date

December 23, 2019

Language
en
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Published Article

In this paper, apply an established transference principle to obtain the boundedness of certain functional calculi for the sequence of semigroup generators. It is proved thatif -𝐴𝐴 𝑗𝑗 be the sequence generates 𝐶𝐶 0 -semigroups on a Hilbert space, then for each 𝜀𝜀 > -1 the sequence of operators 𝐴𝐴 𝑗𝑗 has bounded calculus for the closed ideal of bounded holomorphic functions on right half-plane. The bounded of this calculus grows at most logarithmically as(1 + 𝜀𝜀) ↘ 0. As a consequence decay at ∞. Then showed that each sequence of semigroup generator has a socalled (strong) m-bounded calculus for all m ∈ ℕ, and that this property characterizes the sequence of semigroup generators. Similar results are obtained if the underlying Banach space is a UMD space. Upon restriction to so-called 𝛾𝛾 𝑗𝑗 -𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏𝑏 semigroups, the Hilbert space results actually hold in general Banach spaces.

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Functional Calculus for the Series of Semigroup Generators Via Transference

Shawgy Hussein
Shawgy Hussein Upper Nile University
Simon Joseph
Simon Joseph
Ahmed Sufyan
Ahmed Sufyan
Murtada Amin
Murtada Amin
Ranya Tahir
Ranya Tahir
Hala Taha
Hala Taha

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