%0 Journal Article %A Martínez Ansemil, José María %A Ponte Miramontes, María Del Socorro %A López-Salazar Codes, Jerónimo %T The spaces of analytic functions on open subsets of RN and CN %D 2015 %@ 0034-5318 %U https://hdl.handle.net/20.500.14352/34661 %X This paper is devoted to studying the space A(U) of all analytic functions on an open subset U of ℝℕ or ℂℕ. It is proved that if U satisfies a weak condition (that will be called the 0-property), then every f ϵ A(U) depends only on afinite number of variables. Several topologies on A(U) are then studied: the compact-open topology, the Tδ topology (already known in spaces of holomorphic functions) and a new one, defined by the inductive limit of the subspaces of analytic functions which only depend on a finite number of variables. %~