Construction of the Steenrod Squares

    The object of this chapter is to construct the Steenrod squares. These are cohomology operations of type (Zz, n; Z z, n + i). We remark now, once and for all, that there are analogous operations for Zp coefficients, where p is an odd prime; but they will not be treated in this book. In Chapter I we constructed a CW-complex K(n,n) for any abelian group re… CONTINUE READING