A Characterization of the Closed Linear Spans of Two Families of Incomplete Systems of Analytic Functions

Abstract

A treatment of various acoustoelectric problems, using the large-signal expressions for gain and current saturation which were derived by the authors in an earlier paper, is presented.The phenomena dealt with are : (i) Travelling high-field domains in semiconducting CdS.(ii) Damped and continuous oscillations in photoconductive CdS.(iii) The current-voltage characteristics of thin platelets of photoconductive CdS. The essential characteristics of the above phenomena are obtained in the numerical calculations carried out for specified cases.