Articolo in rivista

Grid Scheduling by On-line Rectangle Packing

Nel presente lavoro ci si occupa dello scheduling su griglie computazionali, fornendo un modello basato sul problema del rectangle packing. Viene fornita un'ampia sperimentazione, anche in presenza di malleabilità dei task da schedulare.

STABILITY AND ERRORS ESTIMATES OF A SECOND-ORDER IMSP SCHEME

We analyze a second-order accurate implicit-symplectic (IMSP) scheme for reaction-diffusion systems modeling spatiotemporal dynamics of predator-prey populations. We prove stability and errors estimates of the semi-discrete-in-time approximations, under positivity assumptions. The numerical…

Iontophoretic transdermal drug delivery: a multi-layered approach.

We present a multi-layer mathematical model to describe the transdermal drug release from an iontophoretic system. The Nernst-Planck equation describes the basic convection-diffusion process, with the electric potential obtained by solving the Laplace's equation. These equations are complemented…

An introduction to multi-GPU programming for physicists

Identification of Asymptotic Decay to Self-Similarity for One-Dimensional Filtration Equations

The objective of this paper is the derivation and the analysis of a simple explicit numerical scheme for general one-dimensional filtration equations. It is based on an alternative formulation of the problem using the pseudoinverse of the density's repartition function. In particular, the numerical…

MIMO: an efficient tool for molecular interaction maps overlap

Background: Molecular pathways represent an ensemble of interactions occurring among molecules within the cell and between cells. The identification of similarities between molecular pathways across organisms and functions has a critical role in understanding complex biological processes. For the…

On the dynamics of an intraguild predator-prey model

An intraguild predator-prey model with a carrying capacity proportional to the biotic resource, is generalized by introducing a Holling type II functional response. The longtime behaviour of solutions is analyzed and, in particular, absorbing sets in the phase space are determined. The…

A method for the numerical resolution of Abel type integral equations of the first kind

A numerical method to solve Abel-type integral equations of first kind is given. In this paper we suggest the research of a numerical solution for Abel-type integral equations of the first kind, by using a collocation method employing an interpolatory product-quadrature formula with a trigonometric…

On the dynamics of magneto-elastic interactions: existence of solutions and limit behaviors

Computing integrals with an exponential weight on the real axis in floating point arithmetic

The aim of this work is to propose a fast and reliable algorithm for computing integrals of the type $$\int_{-\infty}^{\infty} f(x) e^{\scriptstyle -x^2 -\frac{\scriptstyle 1}{\scriptstyle x^2}} dx,$$ where $f(x)$ is a sufficiently smooth function, in floating point arithmetic. The algorithm…