The purpose of this thesis is to make a contribution to both, the field of orthogonal polynomials and that of operator theory. On the one hand, certain relations between orthogonal polynomial systems are discussed. Given a polynomial system, we determine two related systems and the so called conjugate orthogonal polynomial system. On the other hand, the Cesàro operator in weighted sequence spaces is investigated. We establish a connection between the Cesàro operator and the orthogonal polynomial systems and exhibit various examples.
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The purpose of this thesis is to make a contribution to both, the field of orthogonal polynomials and that of operator theory. On the one hand, certain relations between orthogonal polynomial systems are discussed. Given a polynomial system, we determine two related systems and the so called conjugate orthogonal polynomial system. On the other hand, the Cesàro operator in weighted sequence spaces is investigated. We establish a connection between the Cesàro operator and the orthogonal polynomial...
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