History-dependent contact models for viscoplastic materials
Abstract We consider two mathematical models which describe the frictionless process of contact between a rate-type viscoplastic body and a…
A viscoplastic contact problem with normal compliance, unilateral constraint and memory term
Abstract We consider a mathematical model which describes the quasistatic contact between a viscoplastic body and a foundation. The material’s…
Mixed convection boundary layer flow from a vertical truncated cone in a nanofluid
Abstract The purpose of this paper is to investigate the steady mixed convection boundary layer flow from a vertical frustum…
Penalization of history-dependent variational inequalities
Abstract The present paper represents a continuation of Sofonea and Matei’s paper (Sofonea, M. and Matei, A. (2011) History-dependent quasivariational…
A viscoelastic contact problem with adhesion and surface memory effects
Abstract We consider a mathematical model which describes the quasistatic contact between a viscoelastic body and an obstacle, the so-called…
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…