Sur quelques problèmes arithmétiques de la théorie des nombres ordinaux
Symmetric and Asymmetric Gaps in Some Fields of Formal Power Series
2000 Mathematics Subject Classification: 03E04, 12J15, 12J25.We consider a construction of fields with symmetric gaps that are not semi-η1. By this construction we give examples of fields with different asymmetric gaps.
Synthesis of membership functions to determine a radius of influence.
In this work we study the synthesis of membership functions when they have been calculated from a set of observations according to the definition of (Zhang, 1993). The results obtained have been used to determine the radius of influence of a tramp for Podarcis lilfordi (a kind of saurians) in the island of Cabrera (Balearic Islands). The measure of this radius was used in a later work to estimate the density of these saurians in the island.