Abstract
The relationships between Koszulity and finite Galois coverings are obtained, which provide a construction of Koszul algebras by finite Galois coverings.
Similar content being viewed by others
References
Beilinson A A, Ginzburg V A, Soergel W. Koszul duality patterns in representation theory. J Amer Math Soc, 9: 473–527 (1996)
Green E L, Martínez-Villa R. Koszul and Yoneda algebras II. In: Representation theory of algebras, CMS Conf Proc, Vol 24. Providence: Amer Math Soc, 1998, 227–244
Butler M C R, King A D. Minimal resolutions of algebras. J Algebra, 121: 323–362 (1999)
Green E L, Hartman G, Marcos E N, Solberg Ø. Resolutions over Koszul algebras. Arch Math (Basel), 85: 118–127 (2005)
Martínez-Villa R. Applications of Koszul algebras: The preprojective algebras. In: Representation theory of algebras, CMS Conf Proc, Vol 18, Providence: Amer Math Soc, 1996, 487–504
Green E L, Martínez-Villa R. Koszul and Yoneda algebras. In: Representation theory of algebras, CMS Conf Proc, Vol 18. Providence: Amer Math Soc, 1996, 247–297
Green E L. Introduction to Koszul algebras. In: Representation theory and algebraic geometry, London Math Soc Lecture Note Ser, Vol 238. Cambridge: Cambridge University Press, 1997, 45–62
Anderson F W, Fuller K R. Rings and categories of modules. Grad Texts in Math, Vol 13. Berlin: Springer-Verlag, 1974
Martínez-Villa R. Serre duality for generalized Auslander regular algebras. In: Trends in the representation theory of finite-dimensional algebras, Contemp Math, Vol 229. Providence: Amer Math Soc, 1996, 237–263
Cohen M, Montgomery S. Group-graded rings, smash products, and group actions. Trans Amer Math Soc, 282: 237–258 (1984)
Martínez-Villa R. Skew group algebras and their Yoneda algebras. Math J Okayama Univ, 43: 1–16 (2001)
Auslander M, Reiten I, Smalø S O. Galois actions on rings and finite Galois coverings. Math Scand, 65: 5–32 (1989)
Green E L. Graphs with relations, covering and group-graded algebras. Trans Amer Math Soc, 279: 297–310 (1983)
Auslander M, Reiten I, Smalø S O. Representation theory of artin algebras. Cambridge studies in advancedmathematics, Vol 36, Cambridge: Cambridge university press, 1995
Bongartz K, Gabriel P. Covering spaces in representation-theory. Invent Math, 65: 331–378 (1982)
Gabriel P. The universal cover of a representation-finite algebra. In: Representations of algebras, Lecture Notes in Math, Vol 903. Berlin: Springer-Verlag, 1981, 68–105
Ringel C M. The preprojective algebra of a quiver. In: Representation theory of algebras, CMS Conf Proc, Vol 24. Providence: Amer Math Soc, 1998, 467–480
Author information
Authors and Affiliations
Corresponding author
Additional information
This work was supported by National Natural Science Foundation of China (Grant No. 10731070)
Rights and permissions
About this article
Cite this article
Zhao, D., Han, Y. Koszul algebras and finite Galois coverings. Sci. China Ser. A-Math. 52, 2145–2153 (2009). https://doi.org/10.1007/s11425-009-0082-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11425-009-0082-y