Business Genre
Long Business Description
Inner core sensitive modes exhibit a spread of singlet frequencies far exceeding that which can be explained by plausible isotropic heterogeneity. This large deviation from sphericity contributes to non-uniqueness of the non-linear inversion for individual mode splitting functions. To alleviate this non-uniqueness, we have implimented a direct and simultaneous inversion of spectra from 25 modes for inner core structure.