Algebra
Colloquium
Volume 6 • Number 1 • March 1999
On Centralizer-like Subgroups Associated with the n-Engel Word
L.-C. Kappe and P.M. Ratchford
Biordered Set Languages in Band Languages P.R. Kumar
On the Finitary Linearity of Wreath Products of Groups 23 B.A.F. Wehrfritz
Strongly Semiprime Near-rings 33 N.J. Groenewald
On Exchange Rings with All Idempotents Central 45 H.Y. Chen
q-Witt Algebras, q-Lie Algebras, q-Holomorph Structure and Representations 51 N.H. Hu
Lattices ofSubautomata and Direct Sum Decompositions of Automata 71 M. Ciric and S. Bogdanovic
Invariant Additive Subgroups of Simple Rings 89 C.L. Chuang
Full Ideas of Polynomial Functions on Zpn 97 C.J. Maxson and A.B. van der Merwe
On Quasi-C-semigroups and Some Special Subclasses 105 Y.Q. Guo, K.P. Shum and P.Y. Zhu