Then, the wavelet evolution due to this geometric nonlinear effect is discussed tothus ascertaln definite physical meanings of three instantaneous data and also to of-fer a model, which can be used to separate this geometric effect from lithologic ef-fect in seismic data proces.

In the paper, the fundamental theory of wavelet inversion and wave impedance inversion are briefly described.

Shape evolution of third-order soliton in optical fibers with quintic nonlinearity;

This paper presents a new lattice evolution based algorithm, Lattice Poisson method (LPM), for solving the nonlinear Poisson equation without any linearization process.