The Use of Hybrid Methods for the Numerical Determination of the Relaxation or Retardation Spectra

Abstract
The advantages of using the hybrid methods for calculation of the relaxation spectrum are demonstrated. A starting point for the numerical method is one of the higher approximations of relaxation spectrum due to Schwarzl and Staverman, Fujita, Ferry and Ninomiya, and Tschoegl. The corresponding kernel functions are generally “well posed”. Further improvement in the determination of relaxation spectrum may be achieved when a suitable numerical method is used. A sample calculation for a wide spectrum and Rouse distribution of relaxation times is presented.

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