Title of Paper: The homotopy fixed point spectra of profinite Galois extensions Authors: Mark Behrens, Daniel G. Davis AMS Classification numbers: 55N20, 55P43 ArXiv ID: math.AT/0808.1092 Email address of authors: mbehrens@math.mit.edu, dgdavis@louisiana.edu Abstract: Let E be a k-local profinite G-Galois extension of an E_\infty-ring spectrum A (in the sense of Rognes). We show that E may be regarded as producing a discrete G-spectrum. Also, we prove that if E is a profaithful k-local profinite extension which satisfies certain extra conditions, then the forward direction of Rognes's Galois correspondence extends to the profinite setting. We show the function spectrum F_A((E^hH)_k, (E^hK)_k) is equivalent to the homotopy fixed point spectrum ((E[[G/H]])^hK)_k where H and K are closed subgroups of G. Applications to Morava E-theory are given, including showing that the homotopy fixed points defined by Devinatz and Hopkins for closed subgroups of the extended Morava stabilizer group agree with those defined with respect to a continuous action and in terms of the derived functor of fixed points.