Let {E<sub>i</sub>:i∈I}be a family of Archimedean Riesz spaces.The Riesz product space is denoted by Π<sub>i∈I</sub> E<sub>i</sub>.The main result in this paper is the following ...Let {E<sub>i</sub>:i∈I}be a family of Archimedean Riesz spaces.The Riesz product space is denoted by Π<sub>i∈I</sub> E<sub>i</sub>.The main result in this paper is the following conclusion:There exists a completely regular Hausdorff space X such that Π<sub>i∈I</sub> E<sub>i</sub> is Riesz isomorphic to C(X)if and only if for every i ∈ I there exists a completely regular Hausdorff space X<sub>i</sub> such that E<sub>i</sub> is Riesz isomorphic to C(X<sub>i</sub>).展开更多
This paper gives a systematic study of Riesz bases of multivariate translates derived from a fixed compactly supported multivariate function in a Sobolev space.Starting with a multivariate function φ satisfying a ver...This paper gives a systematic study of Riesz bases of multivariate translates derived from a fixed compactly supported multivariate function in a Sobolev space.Starting with a multivariate function φ satisfying a very mild condition in Sovolev space Hs(Rd),we provide a necessary and sufficient condition under which {φ(x-n)}n∈Zd is a Riesz basis for span{φ(x-n)}n∈Zd.展开更多
基金Supported by the National Natural Science Foundation of China
文摘Let {E<sub>i</sub>:i∈I}be a family of Archimedean Riesz spaces.The Riesz product space is denoted by Π<sub>i∈I</sub> E<sub>i</sub>.The main result in this paper is the following conclusion:There exists a completely regular Hausdorff space X such that Π<sub>i∈I</sub> E<sub>i</sub> is Riesz isomorphic to C(X)if and only if for every i ∈ I there exists a completely regular Hausdorff space X<sub>i</sub> such that E<sub>i</sub> is Riesz isomorphic to C(X<sub>i</sub>).
基金supported by National Science Foundation of China (10871217)Guangxi Natural Science Foundation(0542046)The fund of Guilin University of Electronic Technology(Z20710)
文摘This paper gives a systematic study of Riesz bases of multivariate translates derived from a fixed compactly supported multivariate function in a Sobolev space.Starting with a multivariate function φ satisfying a very mild condition in Sovolev space Hs(Rd),we provide a necessary and sufficient condition under which {φ(x-n)}n∈Zd is a Riesz basis for span{φ(x-n)}n∈Zd.