%0 Journal Article %T An extension theorem for sober spaces and the Goldman topology %A Ezzeddine Bouacida %A Othman Echi %A Gabriel Picavet %A Ezzeddine Salhi %J International Journal of Mathematics and Mathematical Sciences %D 2003 %I Hindawi Publishing Corporation %R 10.1155/s0161171203212230 %X Goldman points of a topological space are defined in order to extend the notion of prime G-ideals of a ring. We associate to any topological space a new topology called Goldman topology. For sober spaces, we prove an extension theorem of continuous maps. As an application, we give a topological characterization of the Jacobson subspace of the spectrum of a commutative ring. Many examples are provided to illustrate the theory. %U http://www.hindawi.com/journals/ijmms/2003/592608/abs/