We review the thermodynamic properties of general asymptotically flat black holes in fou r dimensions\, suggestive of a dual conformal field theory interpretation. We introduce the so-called subtracted geometry as an ``asymptotically con ical box'\;'\; of non-extremal black holes where the conformal symme try becomes manifest. Employing holographic renormalization techniques in a variational problem in terms of equivalence classes of boundary data und er the local asymptotic symmetries of the theory\, we derive the conserved charges and the first law of thermodynamics for the subtracted geometry. We also formulate a holographic dictionary for this geometry in terms of a two-dimensional Einstein-Maxwell-Dilaton model.

\n DTSTART:20161005T193000Z LOCATION:Physics Building\, Room 204 SUMMARY:Nonextremal black holes\, subtracted geometry and holography END:VEVENT END:VCALENDAR