• Killing superalgebras for Lorentzian four-manifolds 

      de Medeiros, Paul; Figueroa-O’Farrill, José; Santi, Andrea (Journal article; Peer reviewed, 2016-06)
      We determine the Killing superalgebras underpinning field theories with rigid unextended supersymmetry on Lorentzian four-manifolds by re-interpreting them as filtered deformations of Z-graded subalgebras with maximum odd ...
    • Submaximal conformal symmetry superalgebras for Lorentzian manifolds of low dimension 

      de Medeiros, Paul (Journal article; Peer reviewed, 2016-02)
      We consider a class of smooth oriented Lorentzian manifolds in dimensions three and four which admit a nowhere vanishing conformal Killing vector and a closed two-form that is invariant under the Lie algebra of conformal ...