For an abelian module M, we show that M is Baer (resp. principally projective) if and only if the polynomial extension of M is Baer (resp. principally projective) if and only if the power series extension of M is Baer (resp. principally projective) if and only if the Laurent polynomial extension of M is Baer (resp. principally projective) if and only if the Laurent power series extension of M is Baer (resp. principally projective).
📌 3 Key Takeaways
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Objective & Hypothesis:In this note, we investigate extensions of Baer and principally projective modules.
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Key Findings & Data:Let R be an arbitrary ring with identity and M a right R-module.
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Conclusion & Impact:For an abelian module M, we show that M is Baer (resp. principally projective) if and only if the polynomial extension of M is Baer (resp. principally projective) if and only if the power series extension of M is Baer (resp. principally projective) if and only if the Laurent polynomial extension of M is Baer (resp. principally projective) if and only if the Laurent power series extension of M is Baer (resp. principally projective).
In this note, we investigate extensions of Baer and principally projective modules. Let R be an arbitrary ring with identity and M a right R-module. For an abelian module M, we show that M is Baer (resp. principally projective) if and only if the polynomial extension of M is Baer (resp. principally projective) if and only if the power series extension of M is Baer (resp. principally projective) if and only if the Laurent polynomial extension of M is Baer (resp. principally projective) if and only if the Laurent power series extension of M is Baer (resp. principally projective).
HALİCİOGLU, S., UNGOR, B., HARMANCI, A. (2012). Extensions of Baer and Principally Projective Modules. Gazi University Journal of Science, Cilt: 25 - Sayı: 4, 863–867. https://ajindex.com/articles/255132
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