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Apostolos Beligiannis | Akateeminen Kirjakauppa

HOMOLOGICAL AND HOMOTOPICAL ASPECTS OF TORSION THEORIES

Homological and Homotopical Aspects of Torsion Theories
Apostolos Beligiannis; Idun Reiten
American Mathematical Society (2007)
Pehmeäkantinen kirja
85,10
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ostoskoriin kpl
Siirry koriin
Homological and Homotopical Aspects of Torsion Theories
85,10 €
American Mathematical Society
Sivumäärä: 207 sivua
Asu: Pehmeäkantinen kirja
Julkaisuvuosi: 2007, 30.05.2007 (lisätietoa)
Kieli: Englanti
In this paper the authors investigate homological and homotopical aspects of a concept of torsion which is general enough to cover torsion and cotorsion pairs in abelian categories, $t$-structures and recollements in triangulated categories, and torsion pairs in stable categories. The proper conceptual framework for this study is the general setting of pretriangulated categories, an omnipresent class of additive categories which includes abelian, triangulated, stable, and more generally (homotopy categories of) closed model categories in the sense of Quillen, as special cases. The main focus of their study is on the investigation of the strong connections and the interplay between (co)torsion pairs and tilting theory in abelian, triangulated and stable categories on one hand, and universal cohomology theories induced by torsion pairs on the other hand. These new universal cohomology theories provide a natural generalization of the Tate-Vogel (co)homology theory. The authors also study the connections between torsion theories and closed model structures, which allow them to classify all cotorsion pairs in an abelian category and all torsion pairs in a stable category, in homotopical terms. For instance they obtain a classification of (co)tilting modules along these lines. Finally they give torsion theoretic applications to the structure of Gorenstein and Cohen-Macaulay categories, which provide a natural generalization of Gorenstein and Cohen-Macaulay rings.

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Helsinki
Tapiola
Turku
Tampere
Homological and Homotopical Aspects of Torsion Theories
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ISBN:
9780821839966
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