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Proceedings of the American Mathematical Society
ISSN 1088-6826 (e) ISSN 0002-9939 (p)
     

All tilting modules are of finite type

Author(s): Silvana Bazzoni; Jan Stovícek
Journal: Proc. Amer. Math. Soc. 135 (2007), 3771-3781.
MSC (2000): Primary 16D90, 16D30; Secondary 03E75, 16G99.
Posted: August 30, 2007
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Abstract | References | Similar articles | Additional information

Abstract: We prove that any infinitely generated tilting module is of finite type, namely that its associated tilting class is the Ext-orthogonal of a set of modules possessing a projective resolution consisting of finitely generated projective modules.


References:

1.
L. Angeleri-Hügel, F. U. Coelho, Infinitely generated tilting modules of finite projective dimension, Forum Math. 13 (2001), 239-250. MR 1813669 (2002b:16009)

2.
L. Angeleri-Hügel, D. Herbera, J. Trlifaj, Tilting modules and Gorenstein rings, Forum Math. 18 (2006), 211-229. MR 2218418 (2007b:16014)

3.
L. Angeleri-Hügel, A. Tonolo and J. Trlifaj, Tilting preenvelopes and cotilting precovers, Algebras and Repres. Theory 4 (2001), 155-170. MR 1834843 (2002e:16010)

4.
M. Auslander, I. Reiten, Applications of contravariantly finite subcategories, Adv. Math. 86 (1991), 111-152. MR 1097029 (92e:16009)

5.
M. Auslander, S. Smalø, Preprojective modules over Artin algebras, J. Algebra 66 (1980), 61-122. MR 591246 (83a:16039)

6.
S. Bazzoni, A characterization of $ n$-cotilting and $ n$-tilting modules, J. Alg. 273 (2004), 359-372. MR 2032465 (2005h:16017)

7.
S. Bazzoni, P. Eklof, J. Trlifaj, Tilting cotorsion pairs, Bull. London Math. Soc. 37 (2005), 683-696. MR 2164830 (2006k:16008)

8.
S. Bazzoni, D. Herbera One dimensional tilting modules are of finite type, Algebr. Represent. Theory, in press 10.1007/s10468-007-9064-3

9.
S. Brenner, M. Butler, Generalizations of the Bernstein-Gelfand-Ponomarev reflection functors, in Proc. ICRA III LNM 832, Springer (1980), 103-169. MR 607151 (83e:16031)

10.
R. R. Colby, K. R. Fuller, Tilting, cotilting and serially tilted rings, Comm. Algebra 25 (10) (1997), 3225-3237. MR 1059750 (91h:16011)

11.
R. Colpi and J. Trlifaj, Tilting modules and tilting torsion theories, J. Alg. 178 (1995), 614-634. MR 1359905 (97e:16003)

12.
W. W. Crawley-Boevey, Infinite-dimensional modules in the representation theory of finite-dimensional algebras, Algebras and modules, I (Trondheim, 1996), 29-54, CMS Conf. Proc. 23 Amer. Math. Soc., Providence, RI, 1998. MR 1648602 (99m:16016)

13.
P. C. Eklof, L. Fuchs, S. Shelah, Baer modules over domains, Trans. Amer. Math. Soc. 332 (1990), 547-560. MR 974514 (91c:13006)

14.
P. C. Eklof, A. H. Mekler, Almost Free Modules, 2nd Ed., North-Holland Math. Library, Elsevier, Amsterdam, 2002. MR 1914985 (2003e:20002)

15.
P. C. Eklof, J. Trlifaj, How to make Ext vanish, Bull. London Math. Soc. 33 (2001), 41-51. MR 1798574 (2001i:16015)

16.
E. Enochs, Injective and flat covers, envelopes and resolvents, Israel J. Math. 39 (1981), 33-38. MR 636889 (83a:16031)

17.
A. Grothendieck, ``Éléments de géométrie algébrique. III. Étude cohomologique des faisceaux cohérents. I'', Inst. Hautes Études Sci. Publ. Math. 11, 1961.

18.
D. Happel, C. Ringel, Tilted algebras, Trans. Amer. Math. Soc. 215 (1976), 81-98. MR 675063 (84d:16027)

19.
W. Hodges, In singular cardinality, locally free implies free, Algebra Universalis 12 (1981), 205-220. MR 608664 (82i:08005)

20.
Y. Miyashita, Tilting modules of finite projective dimension, Math. Z. 193 (1986), 113-146. MR 852914 (87m:16055)

21.
S. Shelah, A compactness theorem for singular cardinals, free algebras, Whitehead problem and transversals, Israel J. Math. 21 (1975), 319-349. MR 0389579 (52:10410)

22.
J. Štovícek, J. Trlifaj, All tilting modules are of countable type, Bull. Lond. Math. Soc. 39 (2007), no. 1, 121-132.

23.
J. Trlifaj, Cotorsion theories induced by tilting and cotilting modules, Abelian Groups, Rings and Modules, Contemporary Math. 273 (2001), 285-300. MR 1817171 (2001m:16012)

24.
J. Xu, Flat covers of modules, Lecture Notes in Mathematics No. 1634, Springer-Verlag, New York (1996). MR 1438789 (98b:16003)


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Additional Information:

Silvana Bazzoni
Affiliation: Dipartimento di Matematica Pura e Applicata, Universitá di Padova, Via Trieste 63, 35121 Padova, Italy
Email: bazzoni@math.unipd.it

Jan Stovícek
Affiliation: Katedra algebry MFF UK, Sokolovská 83, 186 75 Praha 8, Czech Republic
Email: stovicek@karlin.mff.cuni.cz

DOI: 10.1090/S0002-9939-07-08911-3
PII: S 0002-9939(07)08911-3
Keywords: Tilting modules, cotorsion pairs.
Received by editor(s): October 1, 2005
Received by editor(s) in revised form: September 9, 2006
Posted: August 30, 2007
Additional Notes: The first author was supported by Università di Padova (Progetto di Ateneo CDPA048343 ``Decomposition and tilting theory in modules, derived and cluster categories'').
The second author was supported by a grant of the Industrie Club Duesseldorf, GACR 201/05/H005, and the research project MSM 0021620839.
Communicated by: Martin Lorenz
Copyright of article: Copyright 2007, American Mathematical Society
The copyright for this article reverts to public domain after 28 years from publication.


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