$RO(G)$-graded homotopy fixed point spectral sequence for height $2$ Morava $E$-theory (2209.01830v3)

Abstract: We consider $G=Q_8,SD_{16},G_{24},$ and $G_{48}$ as finite subgroups of the Morava stabilizer group which acts on the height $2$ Morava $E$-theory $\mathbf{E}2$ at the prime $2$. We completely compute the $G$-homotopy fixed point spectral sequences of $\mathbf{E}_2$. Our computation uses recently developed equivariant techniques since Hill, Hopkins, and Ravenel. We also compute the $(*-\sigma_i)$-graded $Q_8$- and $SD{16}$-homotopy fixed point spectral sequences, where $\sigma_i$ is a non-trivial one-dimensional representation of $Q_8$.