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Science and Mathematics Education

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University of Nebraska - Lincoln

2008

Gorenstein dimension

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A Theory Of Non-Noetherian Gorenstein Rings, Livia M. Miller Jul 2008

A Theory Of Non-Noetherian Gorenstein Rings, Livia M. Miller

Department of Mathematics: Dissertations, Theses, and Student Research

In Noetherian rings there is a hierarchy among regular, Gorenstein and Cohen-Macaulay rings. Regular non-Noetherian rings were originally defined by Bertin in 1971. In 2007, Hamilton and Marley used Cech cohomology to introduce a theory of Cohen-Macaulay for non-Noetherian rings, answering a question posed by Glaz. This dissertation provides a theory of non-Noetherian Gorenstein rings agreeing with the Noetherian definition, and for which regular rings are Gorenstein, and coherent Gorenstein rings are Cohen-Macaulay. The relationship between Gorenstein rings and FP-injective dimension as defined by Stenstrom is also explored. Finally, an additional characterization of Gorenstein rings involving homological dimensions is examined …