Minimal projective resolutions |
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Authors: | E L Green Ø Solberg D Zacharia |
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Institution: | Department of Mathematics, Virginia Tech, Blacksburg, Virginia 24061-0123 ; Institutt for matematiske fag, NTNU, Lade, N--7491 Trondheim, Norway ; Department of Mathematics, Syracuse University, Syracuse, New York 13244 |
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Abstract: | In this paper, we present an algorithmic method for computing a projective resolution of a module over an algebra over a field. If the algebra is finite dimensional, and the module is finitely generated, we have a computational way of obtaining a minimal projective resolution, maps included. This resolution turns out to be a graded resolution if our algebra and module are graded. We apply this resolution to the study of the -algebra of the algebra; namely, we present a new method for computing Yoneda products using the constructions of the resolutions. We also use our resolution to prove a case of the ``no loop' conjecture. |
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Keywords: | Projective resolutions finite dimensional and graded algebras |
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