Space Topologies and Their Dual Space Topologies for Conventional Functional Space Topologies  

作　　者：Mahjoub A. Elamin Mahjoub A. Elamin(Department of Mathematics, University College of Umluj, University of Tabuk, Tabuk, Saudia Arabia)

机构地区：[1]Department of Mathematics, University College of Umluj, University of Tabuk, Tabuk, Saudia Arabia

出　　处：《Journal of Applied Mathematics and Physics》2024年第3期778-804,共27页应用数学与应用物理（英文）

摘　　要：In this paper, we have studied the topology of some classical functional spaces. Among these spaces, there are standard spaces, spaces that can be metrizable and others that cannot be metrizable. But they are all topological vector spaces and it is in this context that we have chosen to present this work. We are interested in the topology of its spaces and in the topologies of their dual spaces. The first part, we presented the fundamental topological properties of topological vector spaces. The second part, we studied Frechet spaces and particularly the space S(Rⁿ) of functions of class C^∞on Rⁿ which are as well as all their rapidly decreasing partial derivatives. We have also studied its dual S'(Rn</sup>) the space of tempered distributions. The last part aims to define a topological structure on an increasing union of Frechet spaces called inductive limit of Frechet spaces. We study in particular the space D(Ω) of functions of class C^∞ with compact supports on Ω as well as its dual D' (Ω) the space distributions over the open set Ω.In this paper, we have studied the topology of some classical functional spaces. Among these spaces, there are standard spaces, spaces that can be metrizable and others that cannot be metrizable. But they are all topological vector spaces and it is in this context that we have chosen to present this work. We are interested in the topology of its spaces and in the topologies of their dual spaces. The first part, we presented the fundamental topological properties of topological vector spaces. The second part, we studied Frechet spaces and particularly the space S(Rⁿ) of functions of class C^∞on Rⁿ which are as well as all their rapidly decreasing partial derivatives. We have also studied its dual S'(Rn</sup>) the space of tempered distributions. The last part aims to define a topological structure on an increasing union of Frechet spaces called inductive limit of Frechet spaces. We study in particular the space D(Ω) of functions of class C^∞ with compact supports on Ω as well as its dual D' (Ω) the space distributions over the open set Ω.

关 键 词：Linear Forms Dual Spaces Frechet Spaces Partial Derivatives DISTRIBUTIONS Topological Structure Weak Topology Strong Topology 

分 类 号：O17[理学—数学]