The cohomology of $C_2$-equivariant $A(1)$ and the homotopy of $k{o}_{C_2}$

Bertrand J. Guillou, Michael A. Hill, Daniel C. Isaksen +1

We compute the cohomology of the subalgebra $A^{C_2}(1)$ of the $C_2$-equivariant Steenrod algebra $A^{C_2}$. This serves as the input to the $C_2$-equivariant Adams spectral seque…