caa a22 4500 386368090 CHVBK 20180307111943.0 cr unu---uuuuu 161130e198904 xx s 000 0 eng 10.1017/S0022377800013829 doi S0022377800013829 pii (NATIONALLICENCE)cambridge-10.1017/S0022377800013829 Nonlinear frequency shift of finite-amplitude electrostatic surface waves [Elektronische Daten] The problem concerning the appropriate form for the nonlinear frequency shift arising from slow density modulations of electrostatic surface waves in a semi-infinite unmagnetized plasma is reconsidered. The spatial dependence of the wave amplitude normal to the surface is kept general in order to allow for possible nonlinear attenuation behaviour of the surface waves. It is found that if the frequency shift is expressed as a function of the density and its gradient then the result is identical with that of Zhelyazkov (1987b), who assumed a linear exponential attenuation behaviour. Copyright © Cambridge University Press 1989 Stenflo L. Department of Plasma Physics, Umeå University S-90187 Umeå, Sweden Yu M. Y. Ruhr University, D-4630 Bochum, Federal Republic of Germany Journal of Plasma Physics Cambridge University Press 41/2(1989-04), 239-242 0022-3778 41:2<239 1989 41 PLA https://doi.org/10.1017/S0022377800013829 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022377800013829 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Stenflo L. Department of Plasma Physics, Umeå University S-90187 Umeå, Sweden NATIONALLICENCE 700 1- Yu M. Y. Ruhr University, D-4630 Bochum, Federal Republic of Germany NATIONALLICENCE 773 0- Journal of Plasma Physics Cambridge University Press 41/2(1989-04), 239-242 0022-3778 41:2<239 1989 41 PLA CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge