C. Vázquez

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The numerical solution of several mathematical models arising in financial economics for the valuation of both European and American call options on different types of assets is considered. All the models are based on the Black-Scholes partial differential equation. In the case of European options a numerical upwind scheme for solving the boundary backward(More)
This work presents a parallel version of a complex numerical algorithm for solving an el-astohydrodynamic piezoviscous lubrication problem studied in tribology. The numerical algorithm combines regula falsi, ®xed point techniques, ®nite elements and duality methods. The execution of the sequential program on a workstation requires signi®cant CPU time and(More)
Many recent works have investigated the problem of extending a preference over a set of alternatives to its power set, in an attempt to provide a formal representation of the notion of freedom of choice. In general, results are limited to the finite case, which excludes, for instance, the case of economic environments. This paper deals with the possibility(More)
The goal of this paper was to analyse the mechanical properties of Castanea sativa determined using an ultrasonic wave method. The results were compared with those obtained using the traditional static compression and bending methods with the same sample. The results were also compared with expected values for this species, and relationships between(More)