Available in electronic format
Available in print format
Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826 (e) ISSN 0002-9939 (p)
     

A new invariant of stable equivalences of Morita type

Author(s): Zygmunt Pogorzaly
Journal: Proc. Amer. Math. Soc. 131 (2003), 343-349.
MSC (2000): Primary 16D50; Secondary 16G20
Posted: June 5, 2002
Retrieve article in: PDF DVI PostScript

Abstract | References | Similar articles | Additional information

Abstract: It was proved in an earlier paper by the author that the Hochschild cohomology algebras of self-injective algebras are invariant under stable equivalences of Morita type. In this note we show that the orbit algebra of a self-injective algebra $A$ (considered as an $A$-$A$-bimodule) is also invariant under stable equivalences of Morita type, where the orbit algebra is the algebra of all stable $A$-$A$-bimodule morphisms from the non-negative Auslander-Reiten translations of $A$ to $A$.


References:

[1]
H. Asashiba, A covering technique for derived equivalence, J. Algebra 191(1997), 382-415. MR 98b:16009
[2]
H. Asashiba, The derived equivalence classification of representation-finite selfinjective algebras, J. Algebra 214(1999), 182-221. MR 2000g:16019
[3]
M. Auslander, I. Reiten and S. Smalo, Representation Theory of Artin Algebras, Cambridge Studies in Advanced Math. Vol. 36, Cambridge Univ. Press (Cambridge, 1995). MR 96e:16015
[4]
M. Broué, Equivalences of Blocks of Group Algebras, in: V. Dlab and L.L. Scott (eds.) Finite Dimensional Algebras and Related Topics, NATO ASI Series C Vol. 424, Kluwer Academic Press (Dodrecht, 1992), 1-26. MR 97c:20004
[5]
P. Gabriel, Auslander-Reiten sequences and representation-finite algebras, Lecture Notes in Math. 831(Springer-Verlag, Berlin, 1980), 1-71. MR 82i:16030
[6]
D. Happel, Triangulated categories in the representation theory of finite-dimensional algebras, London Math. Soc. Lecture Notes 119, Cambridge Univ. Press (Cambridge, 1988). MR 89e:16035
[7]
D. Happel, Hochschild cohomology of finite-dimensional algebras, in: Seminair d'Algebre P. Dubriel et M-P.Maliavin, Lecture Notes in Math. 1404(Springer-Verlag, Berlin, 1989), 108-126. MR 91b:16012
[8]
A. Heller, The loop-space functor in homological algebra, Trans. Amer. Math. Soc. 96(1960), 382-394. MR 22:6840
[9]
O. Kerner, Minimal approximations, orbital elementary modules, and orbit algebras of regular modules, J. Algebra 217(1999), 528-554. MR 2000e:16018
[10]
H. Lenzing, Wild Canonical Alebras and Rings of Automorphic Forms, in: V. Dlab and L.L. Scott (eds.) Finite Dimensional Algebras and Related Topics, NATO ASI Series C Vol. 424, Kluwer Academic Press (Dodrecht, 1992), 191-212. MR 95m:16008
[11]
M. Linckelmann, Stable equivalences of Morita type for self-injective algebras and $p$-groups, Math. Z. 223(1996), 87-100. MR 97j:20011
[12]
S. Mac Lane, Homology, (Springer-Verlag, Berlin, 1963). MR 28:122
[13]
Z. Pogorza\ly, Invariance of Hochschild cohomology algebras under stable equivalences of Morita type, J. Math. Soc. Japan 53(2001), 913-918.
[14]
Z. Pogorza\ly, Left-right projective bimodules and stable equivalences of Morita type, Colloq. Math. Vol.88 (2) (2001), 243-255.
[15]
J. Rickard, Derived equivalences as derived functors, J. London Math. Soc. (2) 43(1991), 37-48. MR 92b:16043

Similar Articles:

Retrieve articles in Proceedings of the American Mathematical Society with MSC (2000): 16D50, 16G20

Retrieve articles in all Journals with MSC (2000): 16D50, 16G20


Additional Information:

Zygmunt Pogorzaly
Affiliation: Faculty of Mathematics and Computer Science, Nicholas Copernicus University, Chopina 12/18, 87-100 Torun, Poland
Email: zypo@mat.uni.torun.pl

DOI: 10.1090/S0002-9939-02-06553-X
PII: S 0002-9939(02)06553-X
Received by editor(s): May 2, 2001
Received by editor(s) in revised form: September 6, 2001
Posted: June 5, 2002
Dedicated: Dedicated to Professor Idun Reiten on the occasion of her sixtieth birthday
Communicated by: Martin Lorenz
Copyright of article: Copyright 2002, American Mathematical Society


  AMS Website Logo Small Comments: webmaster@ams.org
© Copyright 2008, American Mathematical Society
Privacy Statement
Search the AMSPowered by Google