Topological solutions in ungauged Supergravity

A new general class of solutions of ungauged four-dimensional Supegravity, in one-to-one correspondence with spherically symmetric, static black-hole solutions and Lifshitz solutions with Hyperscaling violation (hvLif) is studied. The causal structure of the space-time is then elucidated. aE-mail: alvaro.delacruzdombriz [at] uct.ac.za bE-mail: mig.montero [at] estudiante.uam.es cE-mail: Carlos.Shabazi [at] uam.es ar X i