Real non-durable consumption expenditure for many countries typically exhibits substantial seasonal fluctuations. In this paper, two seasonal models that are consistent with an extension of the rational expectations life-cycle permanent income hypothesis are evaluated using quarterly seasonally...

This research describes the development of a generic road shape modelling algorithm for simulation of traffic scenes. The proposed algorithm simulates horizontal road alignment, according to the road geometry design standards, in the form of alternating straight section and curve segment...

The author’s initiation into computing 40 years ago, and the early development of parallel computing paradigms within hardware and software systems which evolved at that time, are recounted in a personal trace. It was an optimal time to learn computing and the intuition gained has been of...

The paper is concerned with a posteriori error estimates needed for the adaptive construction of a space grid in solving an initial-boundary value one-dimensional problem for a nonlinear parabolic partial differential equation by the method of lines. A posteriori error indicators are introduced...

Two different kinds of frequency-domain inverse problems for nonlinear media are considered. In the first problem, the linear permittivity and the nonlinear parameter for a stratified slab of a Kerr-like medium are reconstructed as functions of the position from reflection and transmission data...

We apply multiresolution techniques to study the effective properties of boundary value problems. Conditions under which boundary values are preserved in the effective (`homogenized') formulation are developed and discussed. Relations between the eigenfunctions and eigenvalues of the generic...

Conventional time series methods have been generally unsuccessful in forecasting interest rates, with fitted ARIMA models being close to random walks. The method proposed here is to forecast the whole of the yield curve, from which forecasts of individual rates may be extracted. The method is...

The identification of small flaws in a conducting half-space or rectangular specimen using boundary measurements of the static magnetic field is considered. The perturbed magnetic field due to the presence of a small flaw is assumed to be generated by an equivalent current dipole located at the...

Unexpected relationship between the Riccati equation of the Layer Stripping Method and the projecting solenoidal vector fields is found out. A transform which diagonalizes a family of projectors on increasing subspaces of solenoidal fields is constructed. Due to the Ricatti equation the...

The development and application of a heterogenous level method for three-dimensional hydrodynamics and salinity modelling is described. In this model the number of levels in the vertical dimension is adjusted according to the bathymetry at each horizontal node. The generalized wave continuity...