@article{oai:ynu.repo.nii.ac.jp:00006750, author = {Vasudevan, R. and Goel, Satya and Takahasi, S.}, issue = {1&2}, journal = {Yokohama Mathematical Journal = 横濱市立大學紀要. D部門, 数学}, month = {}, note = {application/pdf, Let $A$ be a Banach algebra satisfying conditions weaker than having a two-sided bounded approximate identity. Let $QM(A)$ denote the Banach space of all quasi-multipliers on $A$ . We construct a Banach space $B_{0}$ whose conjugate space $B_{0}^{*}$ is a left $B_{1}^{*}$-module and right $B_{2}^{*}$-module under modified Arens product. It is shown that for Banach algebras satisfying this weaker condition, $QM(A)$ can be embedded isometrically isomorphically into $B_{0}^{*}$. We also show that this embedding of $QM(A)$ in $B_{0}^{*}$ is an extension of the embedding of $M_{r}(A)(M_{¥ell}(A))$ the algebra of all right multipliers (algebra of left multipliers) on $A$ in $B_{1}^{*}(B_{2}^{*})$ [6]. It is also shown that if $A$ is a dual $A^{*}$-algebra of the first kind, then $QM(A)$ is isometrically isomorphic to $B_{0}^{s}$ .}, pages = {49--66}, title = {THE ARENS PRODUCT AND QUASI-MULTIPLIERS}, volume = {33}, year = {1985} }