On the accuracy of pseudospectral differentiation
Abstract For various grids on a finite interval we measure the accurarcy of pseudospectral (collocation) differentiation matrices using two parameters.…
Accurate spectral solutions to a phase-field transition system
Abstract The paper is mainly concerned with numerical approximation of solutions to the phase-field transition system (Caginalp’s model), subject to…
Diffusion in random velocity fields with applications to contaminant transport in groundwater
Abstract The process of diffusion in a random velocity field is the mathematical object underlying currently used stochastic models of transport…
Intrinsic superstatistical components of financial time series
Abstract Time series generated by a complex hierarchical system exhibit various types of dynamics at different time scales. A financial…