In this article, we generalize the concept of torsion pair and study its structure. As a trial of obtaining all torsion pairs, we decompose torsion pairs by projective modules and injective modules. Then we calculate torsion pairs on the algebra KA(n) and tube categories. At last we study the structure of torsion pairs on the module categories of finite-dimensional hereditary algebras. (C) 2013 Elsevier Inc. All rights reserved.
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Tsinghua Univ, Dept Math Sci, Beijing 100084, Peoples R China
Open Univ China, Dept Appl Math, Sch Educ, Beijing 100039, Peoples R ChinaTsinghua Univ, Dept Math Sci, Beijing 100084, Peoples R China
Chang, Huimin
Zhu, Bin
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Tsinghua Univ, Dept Math Sci, Beijing 100084, Peoples R ChinaTsinghua Univ, Dept Math Sci, Beijing 100084, Peoples R China
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Univ Verona, Dipartimento Informat Settore Matemat, Str Le Grazie 15,Ca Vignal 2, I-37134 Verona, ItalyUniv Verona, Dipartimento Informat Settore Matemat, Str Le Grazie 15,Ca Vignal 2, I-37134 Verona, Italy
Huegel, Lidia Angeleri
Marks, Frederik
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Univ Stuttgart, Inst Algebra & Zahlentheorie, Pfaffenwaldring 57, D-70569 Stuttgart, GermanyUniv Verona, Dipartimento Informat Settore Matemat, Str Le Grazie 15,Ca Vignal 2, I-37134 Verona, Italy
Marks, Frederik
Vitoria, Jorge
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City Univ London, Dept Math, Northampton Sq, London EC1V 0HB, EnglandUniv Verona, Dipartimento Informat Settore Matemat, Str Le Grazie 15,Ca Vignal 2, I-37134 Verona, Italy
机构:
Univ Leeds, Sch Math, Leeds LS2 9JT, W Yorkshire, EnglandUniv Leeds, Sch Math, Leeds LS2 9JT, W Yorkshire, England
Baur, Karin
Laking, Rosanna
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Univ Verona, Dipartimento Informat Settore Matemat, Str Grazie 15 Ca Vignal, I-37134 Verona, ItalyUniv Leeds, Sch Math, Leeds LS2 9JT, W Yorkshire, England