[2] H. A. S. Abujabal:
A generalization of some commutativity theorems for rings I. Tamkang J. Math. 21 (1990), 239–245.
MR 1079308 |
Zbl 0741.16012
[3] H. A. S. Abujabal:
A generalization of some commutativity theorems for rings II. Riv. Mat. Univ. Parma (4) 16 (1990), 131–140.
MR 1105734 |
Zbl 0741.16013
[7] M. Ashraf and M. A. Quadri:
On commutativity of associative rings with constraints involving a subset. Radovi Mat. 5 (1989), 141–149.
MR 1012730
[9] I. N. Herstein: Two remarks on the commutativity of rings. Amer. J. Math. 73 (1951), 756–762.
[10] Y. Hirano, Y. Kobayashi and H. Tominaga:
Some polynomial identities and commutativity of $s$-unital rings. Math. J. Okayama Univ. 24 (1982), 7–13.
MR 0660049
[11] T. P. Kezlan:
A note on commutativity of semiprime PI-rings. Math. Japon. 27 (1982), 267– 268.
MR 0655230 |
Zbl 0481.16013
[12] H. Komatsu:
A commutativity theorem for rings. Math. J. Okayama Univ. 26 (1984), 109–111.
MR 0779780 |
Zbl 0568.16017
[13] H. Komatsu, T. Nishinaka and H. Tominaga:
On commutativity of rings. Radovi Mat. 6 (1990), 303–311.
MR 1096712
[17] M. A. Quadri and M. A. Khan:
A commutativity theorem for left $s$-unital rings. Bull. Inst. Math. Acad. Sinica 15 (1987), 323–327.
MR 0942792
[18] M. A. Quadri and M. A. Khan:
A commutativity theorem for associative rings. Math. Japon. 33 (1988), 275–279.
MR 0944028
[19] H. Tominaga and A. Yaqub:
Some commutativity properties for rings II. Math. J. Okayama Univ. 25 (1983), 173–179.
MR 0719622
[20] H. Tominaga and A. Yaqub:
A commutativity theorem for one sided $s$-unital rings. Math. J. Okayama Univ. 26 (1984), 125–128.
MR 0779783