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Fast waves or MHD surface waves of m=-1 (poloidal mode number of left-hand rotation) have been observed to be mode converted on the Alfv\'en resonance layer. The converted waves are a quasielectrostatic form of the shear Alfv\'en waves, i.e., kinetic Alfv\'en wave and/or the resistive mode.
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Yoshimitsu Amagishi (1990) studied this question.
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