抄録
Frequency shift of the plasma oscillation due to the finiteness of the amplitude is investigated by the use of the asymptotic method of Bogoliubov and Mitropolsky for a one-dimensional warm electron plasma in the fluid description, The frequency shift vanishes in the limit of cold plasma in accordance with various authors. The shift derived by Sturrock is shown to be a Doppler shift due to the presence of the uniform motion of the plasma, which strayed into his formulation
