Volume 50, Number 2, April II 2000
|Page(s)||280 - 281|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 September 2002|
Comments on “On `hearing the shape of drums': An experimental study using vibrating smectic films”
School of Science, Griffith University, Nathan - Queensland 4111, Australia
Accepted: 10 February 2000
We point out that one of a pair of isospectral shapes subjected to a certain intentionally altered building scheme would be expected to lose isospectrality because of the mathematical form of a relevant spectral function expansion which involves angles. A higher “calibration” mode which has common exactly specified eigenfrequency for all three shapes is mentioned.
PACS: 02.30.Jr – Partial differential equations / 03.65.Ge – Solutions of wave equations: bound states / 43.40.Dx – Vibrations of membranes and plates
© EDP Sciences, 2000
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