[图书][B] Approximations and endomorphism algebras of modules

R Göbel, J Trlifaj - 2006 - degruyter.com
References Page 1 References [1] S. Abhyankar, S. Wiegand, On the compositum of two power
series rings, Proc. Amer. Math. Soc. 112 (1991), 629 – 636. [2] U. Albrecht, Endomorphism …

Silting modules

LA Hügel, F Marks, J Vitória - … Mathematics Research Notices, 2016 - academic.oup.com
We introduce the new concept of silting modules. These modules generalize tilting modules
over an arbitrary ring, as well as support-tilting modules over a finite dimensional algebra …

Tilting modules and tilting torsion theories

R Colpi, J Trlifaj - Journal of Algebra, 1995 - Elsevier
We generalize basic results about classical tilting modules and partial tilting modules to the
infinite dimensional case, over an arbitrary ring R. The methods employed combine classical …

[HTML][HTML] Ladders and simplicity of derived module categories

LA Hügel, S Koenig, Q Liu, D Yang - Journal of Algebra, 2017 - Elsevier
Recollements of derived module categories are investigated, using a new technique,
ladders of recollements, which are maximal mutation sequences. The position in the ladder …

Tilting preenvelopes and cotilting precovers

L Angeleri Hügel, A Tonolo, J Trlifaj - Algebras and Representation …, 2001 - Springer
We relate the theory of envelopes and covers to tilting and cotilting theory, for (infinitely
generated) modules over arbitrary rings. Our main result characterizes tilting torsion classes …

Whitehead test modules

J Trlifaj - Transactions of the American Mathematical Society, 1996 - ams.org
A (right $ R $-) module $ N $ is said to be a Whitehead test module for projectivity (shortly: a
p-test module) provided for each module $ M $, $ Ext_R (M, N)= 0$ implies $ M $ is …

Tilting, cotilting, and spectra of commutative Noetherian rings

L Angeleri Hügel, D Pospíšil, J Šťovíček… - Transactions of the …, 2014 - ams.org
We classify all tilting and cotilting classes over commutative noetherian rings in terms of
descending sequences of specialization closed subsets of the Zariski spectrum …

Quasi-tilting modules and counter equivalences

R Colpi, G D'Este, A Tonolo - Journal of Algebra, 1997 - Elsevier
Given two ringsRandS, we study the category equivalences T⇄ Y, where T is a torsion class
ofR-modules and Y is a torsion-free class ofS-modules. These equivalences correspond to …

[图书][B] Equivalence and duality for module categories with tilting and cotilting for rings

RR Colby, KR Fuller - 2004 - books.google.com
This book provides a unified approach to much of the theories of equivalence and duality
between categories of modules that has transpired over the last 45 years. In particular …

Partial cotilting modules and the lattices induced by them

R Colpi, A Tonolo, J Trlifaj - Communications in Algebra, 1997 - Taylor & Francis
We study a duality between (infinitely generated) cotilting and tilting modules over an
arbitrary ring. Dualizing a result of Bongartz, we show that a module P is partial cotilting iff P …