### C_2-fixed points of topological Hochschild homology of the integers at two, by John Rognes

We prove by computation that the C_2-fixed points and the C_2-homotopy
fixed points of the topological Hochschild homology of the integers are
homotopy equivalent, after two-adic completion and passing to
connective covers. Hence the same holds for the C_{2^n}-fixed points
by a theorem of Tsalidis.

John Rognes <rognes@math.uio.no>