%0 Journal Article 
%A Sendra Pons, Juan Rafael
%A Sevilla, David
%A Villarino Cabellos, Carlos
%T Covering of surfaces parametrized without projective base points
%D 2014
%U http://hdl.handle.net/10017/20682
%X We prove that every a ne rational surface, parametrized by means of an a ne rational parametrization without projective base points, can be covered by at most three parametrizations.
Moreover, we give explicit formulas for computing the coverings. We provide two di erent approaches: either
covering the surface with a surface parametrization plus a curve parametrization plus a point, or with the original parametrization plus two surface reparametrizations of it.
%K Rational algebraic surface
%K Parametrization coverings
%K Base points
%K Ciencia
%K Matemáticas
%K Science
%K Mathematics
%~ Biblioteca Universidad de Alcala