In this paper, we will study the topological centers of nβth dual of Banach
Aβmodule and we extend some propositions from Lau and UΒ¨lger into
nβth dual of Banach Aβmodules. Let B be a Banach Aβbimodule. By using
some new conditions, we show that ZβA(n)β(B(n))=B(n) and
ZβB(n)β(A(n))=A(n). We also have some conclusions in dual
groups