scientific article

zbMath1273.20056MaRDI QIDQ3144539

Simion Sorin Breaz, Phillip Schultz, Ulrich F. Albrecht

Publication date: 8 December 2012

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

extensionsdirect sumstorsion-free Abelian groupsdirect productsself-productsfunctors on Abelian groupsself-sums

Mathematics Subject Classification ID

Homological functors on modules (Tor, Ext, etc.) in associative algebras (16E30) Structure and classification for modules, bimodules and ideals (except as in 16Gxx), direct sum decomposition and cancellation in associative algebras) (16D70) Extensions of abelian groups (20K35) Homological and categorical methods for abelian groups (20K40) Direct sums, direct products, etc. for abelian groups (20K25)

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The defect functor of a homomorphism and direct unions ⋮ Modules \(M\) such that \(\mathrm{Ext}_R^1(M,-)\) commutes with direct limits.

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