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Samir Kasim Hassan
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ONE PARAMETER COMPOSITE SEMIGROUPS OF LINIER BOUNDED OPERATORS ON STRONG OPERATOR TOPOLOGY OF SCHATTEN CLASS C Hassan, Samir Kasim
MAGISTRA Vol 23, No 78 (2011): Magistra Edisi Desember
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Abstract

The object of the paper is to disxuss when ____, 0<t<Y is in the Schatte class Cp, 0<P<Y. for semigroups on a Bannach space of linier bounded operators on IIilbert space, and the problem of being Cp in is more interesting than of begin compact.
SOLVABILITY OF NONLINEAR PERTURBED SYSTEM WITH UNBOUNDED CONTROL OPERATOR BY USING SUFFICIENTLYCONDITIONS OF ADMISSIBLE OBSERVATION OPERATORS Hassan, Samir Kasim
MAGISTRA Vol 25, No 83 (2013): Magistra Edisi Maret
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Abstract

In this paper a sufficient conditions for the finite -time admissibility of an perturbed observation operator are given as sufficient estimate to prove the local existence , uniqueness of the mild solutions of nonlinear initial value input/output unbounded perturbed control/ observation problem in suitable Hilbert space using perturbed semigroup theory. Keyword: Perturbed semigroup, admissible , unbounded control, mild solution, strict contraction.