The generalized coherent states for oscillators , connected with

The generalized coherent states for oscillators, connected with Meixner and Meixner-Pollaczek polynomials 1 Authors dedicate this work to our friend and the colleague P.P.Kulish in connection with his 60 th birthday The investigation of the generalized coherent states for oscillator-like systems connected with given family of orthogonal polynomials is continued. In this work we consider oscil-lators connected with Meixner and Meixner-Pollaczek polynomials and define generalized coherent states for these oscillators. The completeness condition for these states is proved by the solution of the related classical moment problem. The results are compared with the other authors ones. In particular, we show that the Hamiltonian of the relativistic model of linear harmonic oscillator can be thought of as the linearization of the quadratic Hamiltonian which naturally arised in our formalism.