RT Journal Article
T1 Double Coverings Of Hyperelliptic Real Algebraic Curves
A1 Gamboa Mutuberria, José Manuel
A1 Bujalance, E.
A1 Cirre, F.J.
AB We consider double and (possibly) branched coverings  : X ! X0 between real algebraic curves where X is hyperelliptic.We are interested in the topology of such coverings and also in describing them in terms of algebraic equations.In this article we completely solve these two problems.We first analyse the topological features and ramification data of such coverings. Second, for each isomorphism class of these coverings we then describe a representative, with defining polynomial equations for X and for X0, a formula for the involution that generates the coveri transformation group, and a rational formula forng  the covering projection : X ! X0.
PB Elsevier Science
SN 0022-4049
YR 2008
FD 2008
LK https://hdl.handle.net/20.500.14352/49927
UL https://hdl.handle.net/20.500.14352/49927
LA eng
DS Docta Complutense
RD 5 abr 2025