%0 Journal Article %A Caravantes Tortajada, Jorge %A Sendra Pons, Juan Rafael %A Sevilla, David %A Villarino Cabellos, Carlos %T On the existence of birational surjective parametrizations of affine surfaces %D 2018 %@ 0021-8693 %U http://hdl.handle.net/10017/45758 %X In this paper we show that not all affine rational complex surfaces can be parametrized birational and surjectively. For this purpose, we prove that, if S is an affine complex surface whose projective closure is smooth, a necessary condition for S to admit a birational surjective parametrization from an open subset of the affine complex plane is that the curve at infinity of S must contain at least one rational component. As a consequence of this result we provide examples of affine rational surfaces that do not admit birational surjective parametrizations. %K Rational surface %K Birational parametrization %K Surjective parametrization %K Matemáticas %K Mathematics %~ Biblioteca Universidad de Alcala