info prev up next book cdrom email home

Adem Relations

Relations in the definition of a Steenrod Algebra which state that, for $i<2j$,

\begin{displaymath}
Sq^i\circ Sq^j(x)=\sum_{k=0}^{\left\lfloor{i}\right\rfloor } {{j-k-1}\choose{i-2k}}Sq^{i+j-k}\circ Sq^{k}(x),
\end{displaymath}

where $f\circ g$ denotes function Composition and $\left\lfloor{i}\right\rfloor $ is the Floor Function.

See also Steenrod Algebra




© 1996-9 Eric W. Weisstein
1999-05-25