TY - Type of reference TI - Extension des operations semistar AU - Gmiza Wafa AU - Hizem Sana AB - Let R ⊂ T be an extension of integral domains and ∗ be a semistar operation stable of finite type on R. We define a semistar operation ∗1 on T in the following way : for each nonzero T-submodule E of the quotient field K1 of T, let E∗1 = ∪ {E :K1 JT | J ∈ $$$\mathcal{F}$$$∗}, where K1 denotes the quotient field of T and $$$\mathcal{F}$$$∗ the localizing system associated to ∗. In this paper we investigate the basic properties of ∗1. Moreover, we show that the map $$$\varphi$$$ which associates to a semistar operation ∗ stable and of finite type on R, the semistar operation ∗1 is continuous. Furthermore, we give sufficient conditions for $$$\varphi$$$ to be a homeomorphism. DO - 10.21494/ISTE.OP.2023.0934 JF - Avancées en Mathématiques Pures et Appliquées KW - Semistar operation, localizing system, extension of rings, Zarsiski Topology, Semistar operation, localizing system, extension of rings, Zarsiski Topology, L1 - https://openscience.fr/IMG/pdf/iste_apam23v14nspe_1.pdf LA - fr PB - ISTE OpenScience DA - 2023/03/7 SN - 1869-6090 TT - Extension of Semistar Operations UR - https://openscience.fr/Extension-des-operations-semistar IS - Numéro 2 (Spécial CSMT 2022) VL - 14 ER -