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A8E® A'E such that O(r1(d)) = ((Td), for all d E E®(r+s), where tj : E®(r+s) , ArE ® A8E, C : E®(r+s) -> A"E ® ArE are the natural maps and o E Sym(r+s) is defined by o(i) = i+s, 1 < i < r, and o(r+j) = j, 1 < j < s. Furthermore we have q(ea ®ei) = q'(°)e1®e; for all i = (i1, ...

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