modes of oscillation for a sphere- the spherical harmonicspic.twitter.com/8IDDkbroaE
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holup the spherical harmonics are complex valued, is this a time dependent modulus?
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i took the real part as the amplitude at each point on the surface
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i see, and the time evolution?
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There are different (equivalent) ways to define them, some produce real-valued harmonics. See https://en.wikipedia.org/wiki/Spherical_harmonics#Real_form …
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