OBSTRUCTIONS TO A GENERAL CHARACTERIZATION OF GRAPH CORRESPONDENCES

被引:2
|
作者
Kaliszewski, S. [1 ]
Patani, Nura [1 ]
Quigg, John [1 ]
机构
[1] Arizona State Univ, Sch Math & Stat Sci, Tempe, AZ 85287 USA
关键词
Hilbert modules; C*-correspondences; k-graphs; topological graphs; C-ASTERISK-ALGEBRAS; HIGHER-RANK GRAPHS; PRODUCT SYSTEMS; ISOMORPHISM;
D O I
10.1017/S1446788713000177
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
For a countable discrete space V, every nondegenerate separable C*-correspondence over c(0)(V) is isomorphic to one coming from a directed graph with vertex set V. In this paper we demonstrate why the analogous characterizations fail to hold for higher-rank graphs (where one considers product systems of C*-correspondences) and for topological graphs (where V is locally compact Hausdorff), and we discuss the obstructions that arise.
引用
收藏
页码:169 / 188
页数:20
相关论文
共 50 条