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Andradas Heranz, Carlos ; Recio, Tomás ; Tabera, Luis F. ; Rafael Sendra, J. ; Villarino, Carlos | Elsevier | 2011Let K subset of R be a computable field. We present an algorithm to decide whether a proper rational parametrization of a ruled surface, with coefficients in K((i), can be properly reparametrized over a real (i.e. embedded in R) finite field ext[...]texto impreso
Andradas Heranz, Carlos ; Recio, Tomás ; Sendra, J. Rafael ; Tabera, Luis F. ; Villarino, Carlos | Springer | 2014-04Let be a computable subfield of the real numbers (for instance, ). We present an algorithm to decide whether a given parametrization of a rational swung surface, with coefficients in , can be reparametrized over a real (i.e., embedded in ) finit[...]
