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R. Nagel, “One-Parameter Semigroups of Positive Operators,” Lecture Notes in Math, Springer-Verlag, 1986.

has been cited by the following article:

• TITLE: Analyticity of Semigroups Generated by Singular Differential Matrix Operators

  AUTHORS: Ould Ahmed Mahmoud Sid Ahmed, Adel Saddi

  KEYWORDS: Dissipative Operators, Positive Operators, Spectrum, Analytic Semigroups, Evolution Equations

  JOURNAL NAME: Applied Mathematics, Vol.1 No.4, October 29, 2010

  ABSTRACT: In this paper we prove the analyticity of the semigroups generated by some singular differential matrix operators of the form in the Banach space with suitable boundary conditions. To illustrate the work an example is discussed.