Now showing items 1-11 of 11

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      Best Approximation and Best Co-Approximation in Normed Space

      Abu Ghazal, Akran Mahmoud (الجامعة الإسلامية - غزة, 2009)
      In this thesis, the concept of best approximation and best co-approximation in normed linear spaces is studied. The concepts of ε-best approximation and ε-best co-approximation and ε-orthogonality are introduced and the ...
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      On 2-Normed Algebras

      Abu Zenada, Fadi Samer (الجامعة الإسلامية - غزة, 2013)
      In this thesis we study a 2-normed algebras, the concept of a new definition of real or complex 2-normed algebras and 2-Banach algebras are proposed. Several examples of such algebras are given. Next we will giving two ...
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      On G-Cyclicity of Operators

      Salman, Atef A. (the islamic university, 2007)
      In this thesis, we focus our study on a part of cyclic phenomena, namely Gcyclic operators on an infinite dimensional separable complex Hilbert space. We study some properties of cyclic, supercyclic, and hyupersyclic ...
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      On Linear Maps Preserving Spectrum, Spectral Radius and Essential Spectral Radius

      Alser, Huda A D (الجامعة الإسلامية - غزة, 2016)
      In this thesis, we focus our study on a part of the linear maps on algebras of operators that preserve certain properties of operators. We study linear maps preserving spectrum. Let X and Y be Banach spaces. We show that ...
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      On Powers of p-hyponormal Operators

      Somiry, Nasser A. (the islamic university, 2007)
      In this thesis we have studied the p-hyponormal operators for bounded linear operators on a complex Hilbert space. We study some properties of powers of the p-hyponormal operators, and apply some of these properties on the ...
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      On Stability and Superstability of Some Generalized Cauchy Functional Equations

      Eissa, Alaa I. (الجامعة الإسلامية - غزة, 2014)
      In this thesis, we study some importants facts on Cauchy functional equations and we study the stability and superstability of some generalized Cauchy functional equations. We study the Hyers-Ulam, Th. M. Rassias and Gavruta ...
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      On Stability and Superstability of Some Generalized Cauchy Functional Equations

      Ghalwa, Riham J. Abu (الجامعة الإسلامية - غزة, 2014)
      In this thesis, we study some importants facts on Cauchy functional equations and we study the stability and superstability of some generalized Cauchy functional equations. We study the Hyers-Ulam, Th. M. Rassias and Gavruta ...
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      On Stability of Some Types of Functional Equations

      Al-mosadder, Rehab Saleem Hasan (the islamic university, 2012)
      In this thesis, we study a stability of some types of functional equations. Functional equations are equations in which the unknown (or unknowns) are functions. the aim of this study investigate Hyers-Ulam-Rassias stability ...
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      On The Banach Algebra of Bounded Linear Operators on a BK Space and Applications

      El Houbi, Iyad Mohammed A. (the islamic university, 2008)
      In this thesis we give some properties of Banach algebra of bounded operators B(X) where X is a BK space, and study the solvability of the equation Ax=b for b ∈ {sα, s◦α, sα(c), lp(α)} with α ∈ U+ and 1 ≤ p < ∞. We study ...
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      On Variance and Covariance for Bounded Linear Operators

      Wady, Zuhair M. (the islamic university, 2006)
      In this thesis we have studied Covariance and Variance for bounded linear operators on a complex Hilbert space, where we focus our study on Covariance-Variance inequality(C-V inequality)and its applications. We apply (C-V ...
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      ulam stability of reciprocal , reciprocal difference and reciprocal adjoint functional equations

      Abo Hatab, Hothifa Y. M. (الجامعة الإسلامية - غزة, 2016)