Recent methods developed by Tao [18], Kolountzakis and Matolcsi [7] have led to
counterexamples to Fugelde’s Spectral Set Conjecture in both directions. Namely, in ${\Bbb R}^5$ …

We exhibit an infinite family of triplets of mutually unbiased bases (MUBs) in dimension 6.
These triplets involve the Fourier family of Hadamard matrices, F (a, b). However, in the main …

The treatment of multioffset seismic data as an acoustic wave field is becoming increasingly
disturbing to many geophysicists who see a multitude of wave phenomena, such as …

Seismic inversion, broadly enough defined, is equivalent to doing migration and reflection
tomography simultaneously. Diffraction tomography and inversion work best when sources …

An algorithm is presented to solve the elastic‐wave equation by replacing the partial differentials
with finite differences. It enables wave propagation to be simulated in three dimensions …

Elastic inversion of multioffset seismic data by wave‐ field fitting yields a maximum probability
P-wave and S-wave velocity and density model of the Earth. Theoretically, the inversion …

A lattice solid model capable of simulating rock friction, fracture and the associated seismic
wave radiation is developed in order to study the origin of the stick-slip instability that is …

A lattice solid model is presented that is capable of simulating the nonlinear dynamical
processes (friction and fracture) associated with earthquakes. It is based on molecular dynamics …

… Mora, The lattice solid … Mora, submitted manuscript, 1997) of a new microscopically based
"lattice solid" model introduced by, for example, Mora [1992], Mora and Place [1993], and Mora …

In this paper we study analytically the elastic properties of the 2-D and 3-D regular lattices
consisting of bonded particles. The particle-scale stiffnesses are derived from the given …