It is produced a class of examples of right quasitilted rings which are not right tilted. In each example, the torsion-free class is cogenerated by a cotilting module. In contrast, for a quasitilted Artin algebra, the same condition implies that the algebra is tilted.

A class of quasitilted rings that are not tilted

GREGORIO, Enrico
2006-01-01

Abstract

It is produced a class of examples of right quasitilted rings which are not right tilted. In each example, the torsion-free class is cogenerated by a cotilting module. In contrast, for a quasitilted Artin algebra, the same condition implies that the algebra is tilted.
2006
tilted ring; quasitilted ring; cotilting module
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11562/342152
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