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Proper real reparametrization of rational ruled surfaces

Andradas Heranz, Carlos and Recio, Tomás and Tabera, Luis F. and Rafael Sendra, J. and Villarino, Carlos (2011) Proper real reparametrization of rational ruled surfaces. Computer aided geometric design, 28 (2). pp. 102-113. ISSN 0167-8396

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Let 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 extension of K. Moreover, in the affirmative case, the algorithm provides a proper parametrization with coefficients in a real extension of K of degree at most 2.

Item Type:Article
Uncontrolled Keywords:Curvas; Superficies; Ingeniería del soporte lógico
Subjects:Sciences > Computer science > Software
Sciences > Mathematics > Algebraic geometry
ID Code:14649

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Last Modified:06 Feb 2014 10:05

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