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| Paper IPM / P / 8135 |
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| Abstract: | |||||
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Influence of trapped electrons on the nonstationary evolution
of a train of ion-acoustic solitons is investigated. The presence
of the trapped electrons gives rise to a modified Korteweg-de Vries
equation that is solved both analytically and numerically. It is
shown that the trapped electrons cause the non-stationary stage to
take place in a shorter time interval. The number of solitons in the
train is proportional to the number of trapped electrons. Moreover,
for lager trapping parameter, the solitons move faster with higher
amplitude and smaller width.
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