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- W879547095 abstract "Let (G, E) be a quasi-ordered group such that E∩E-1 is infinite, (G,G+) an ordered group with G+( )E( )G, and (G, G1) the partially ordered group induced by (G,E).Let γE,G+:( )G+→( )E and γE, G1:( )G1→( )E be the corresponding natural morphisms between Toeplitz algebras. We prove that the kernel Ker γE, G+ is rigid,while Ker γE, G1 is equal to the compact-operator ideal on(e)2(G1), and all Fredholm operators in the Toeplitz algebra ( )G1 are of index zero." @default.
- W879547095 created "2016-06-24" @default.
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- W879547095 date "2005-01-01" @default.
- W879547095 modified "2023-09-24" @default.
- W879547095 title "The Rigidity of the Kernels of the Natural Morphisms between Toeplitz Algebras" @default.
- W879547095 hasPublicationYear "2005" @default.
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