We introduce a noncommutative analogue of the Fig\'a-Talamanca-Herz algebra
Ap(G) on the natural predual of the operator space Mp,cb of
completely bounded Schur multipliers on Schatten space Sp. We determine the
isometric Schur multipliers and prove that the space Mp of bounded
Schur multipliers on Schatten space Sp is the closure in the weak operator
topology of the span of isometric multipliers.Comment: 24 pages; corrected typo