The understanding of mantle convection is one of the most puzzling problems of modern
geophysics. Among the different approaches used by geophysicists to investigate mantle …

Recent global travel time tomography studies by Zhou [1996] and van der Hilst et al.[1997]
have been performed with cell parameterizations of the order of those frequently used in …

The dynamic behaviour of actin filaments has been directly observed in living, motile cells
using fluorescence photoactivation. In goldfish epithelial keratocytes, the actin …

Using Cenozoic and Mesozoic plate motion reconstructions, we derive a model of present‐
day mantle density heterogeneity under the assumption that subducted slabs sink vertically …

We present a three‐dimensional shear velocity model of the whole mantle developed using
SH waveform data. The model is expressed horizontally in terms of spherical harmonics up …

An important aspect of the physical sciences is to make inferences about physical
parameters from data. In general, the laws of physics provide the means for computing the …

In this paper we present a method for solving problems such as Af= g by constructing an
approximate inverse which maps the data g to a regularized solution of this equation of the …

In most linear imaging problems, where the model to be sought is expanded in a set of basis
functions, it is common practice to truncate the set at a certain (arbitrary) level. The solution …

Abstract Analysis of travel-time anomalies of long-period shear waves recorded by the
Global Digital Seismographic Network indicates that mantle heterogeneities, which probably …

We have analyzed the splitting characteristics of 75 spheroidal free oscillations excited by
the Great 1994 Bolivia and Kuril Islands earthquakes. These spheroidal modes may be …