Acta Mathematica Vietnamica
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HYPER-GROUPS OF ORTHOGONAL POLYNOMIALS
NGUYEN VAN THUpp. 11-15
Abstract
In the present paper we give a new condition for existence of dual weak hypergroups of hypergroups generated by orthogonal polynomials. In the case of Jacobi polynomials we prove a representation theorem for Lévy type processes in terms of their infinitesimal operators.