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 Injective envelopes of simple modules over polynomial rings Bull. Korean Math. Soc. 2005 Vol. 42, No. 1, 87-92 Published online March 1, 2005 Zhongming Tang Suzhou University Abstract : Let $A$ be a polynomial ring over a field and $M$ a simple $A$-module. We generalize one result of Song about the description of the injective envelope $E_A(M)$ in terms of modules of generalized fractions. Keywords : injective modules, generalized fractions, Galois groups MSC numbers : 12F10, 13C11, 18G05 Full-Text :