Volume 2 • Issue 1 • PP: 34-38 • 2023
A Discussion of FGF Conjecture in Some Quasi-Frobenus Rings
Open Access & Copyright
© 2023 The Author(s). Published by ASPG. This article is licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).
Abstract
A ring R is called right FGF ring, if every finitely generated right R-module embeds in a free right R-module. It is well known that a quasi-Frobenus ring R is right FGF ring, but the converse is still an open question. In this note we give some equivalent additional conditions that convert the right FGF ring to the QF ring. Other known results that characterize the class of quasi-Frobenius rings are fond. In the process, some new results that characterize the class of IF-rings are provided.
Keywords
References
[1] C. Faith, Algebra II, (1976), Ring Theory, Springer-Verlag, Berlin - NewYork.
[2] F. Kasch, (1982), Modules and Rings, Academic Press.
[3] C. Faith, (1982), Embedding modules in projectives: A report on a problem, in Lecture Notes in Math., Vol. 951, Springer-Verlag, Berlinr, New York, pp. 21- 40.
[4] E. A. Rutter Jr., (1969), Two characterizations of Quasi-Frobenius rings, Pacific J. Math. 30, 777–784.
[5] T. S. Tolskaya, (1970) When are all cyclic modules essentially embedded in free modules? Mat. Issled. 5, 187–192.
[6] B. Johns, (1977), Annihilator conditions in noetherian rings, J.Algebra 49, 222–224.
[7] J. L. Go´mez Pardo and P. A. Guil Asensio, (1997), Essential embedding of cyclic modules in projectives, Trans. Amer. Math. Soc. 349, 11, 4343-4353.
[8] Faith, C, Huynh, DV,(2002), When self-injective rings are QF: a report on a problem. J. Algebra Appl. 1, 75-105.
[9] Nicholson, WK, Yousif, MF, (2003), Quasi-Frobenius Rings. Cambridge University Press, Cambridge, 35-163.
[10] Shen, L, Chen, JL, , (2006), New characterizations of quasi-Frobenius rings. Commun. Algebra 34, 2157-2165.
[11] Li, WX, Chen, and JL, (2013), When CF rings are artinian. J. Algebra
Appl. 12, 1250059 [7 pages] DOI: 10.1142/S0219498812500594.
"
Cite This Article
Choose your preferred format
Publisher's Note
The statements, opinions, and data presented in this article are solely those of the author(s) and do not necessarily represent those of ASPG, the journal, or its editors. ASPG and the editors disclaim responsibility for any harm arising from the use of any ideas, methods, instructions, or products described in this article, to the fullest extent permitted by applicable law.