Listar Volumen 19, Números 1 y 2 por título
Mostrando ítems 5-6 de 6
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Niveles de radioactividad en tres regiones de Costa Rica
(2011-02-15)The establishment of the first radioactivity levels of natural radiation was carried out during the period 1991 to 1994 in three different regions of Costa Rica. The radionuclides studied belong to different soil types ... -
Punto fijo una teoría interdisciplinaria
(2011-02-15)We show a survey of the theory of the fixed point by commenting the most important theorems and their applications in the mathematical fields as well as in other disciplines: economy, theory of games and optimization. We ...