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On modules over Laurent polynomial rings (1006.4153v2)
Published 21 Jun 2010 in math.AC and math.GT
Abstract: A finitely generated module over the ring L=Z[t, t{-1}] of integer Laurent polynomials that has no Z-torsion is determined by a pair of sub-lattices of Ld. Their indices are the absolute values of the leading and trailing coefficients of the order of the module. This description has applications in knot theory.
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