Laura Andrianopoli

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We present the analysis of all possible shortenings which occur for composite gauge invariant conformal primary superfields in SU (2, 2/N) invariant gauge theories. These primaries have top-spin range N 2 ≤ J max < N with J max = J 1 + J 2 , (J 1 , J 2) being the SL(2,C) quantum numbers of the highest spin component of the super-field. In Harmonic(More)
The general form of N = 2 supergravity coupled to an arbitrary number of vector multiplets and hypermultiplets, with a generic gauging of the scalar manifold isometries is given. This extends the results already available in the literature in that we use a coordinate independent and manifestly symplectic covariant formalism which allows to cover theories(More)
A geometric formulation which describes extended supergravities in any dimension in presence of electric and magnetic sources is presented. In this framework the underlying duality symmetries of the theories are manifest. Particular emphasis is given to the construction of central and matter charges and to the symplectic structure of all D = 4, N–extended(More)
The aim of this paper is to make progress in the understanding of the Scherk– Schwarz dimensional reduction in terms of a compactification in the presence of background fluxes and torsion. From the eleven dimensional supergravity point of view, we find that a general E6(6) S-S phase may be obtained by turning on an appropriate background torsion, together(More)
We analyze the constraints which follow both on the geometry and on the gauge sector for a consistent supergravity reduction of a general matter–coupled N = 2 supergravity theory in four dimensions. These constraints can be derived in an elegant way by looking at the fermionic sector of the theory. In this note we analyze the constraints which arise from a(More)
We study the general equations determining BPS Black Holes by using a Solvable Lie Algebra representation for the homogenous scalar manifold U/H of extended supergravity. In particular we focus on the N=8 case and we perform a general group theoretical analysis of the Killing spinor equation enforcing the BPS condition. Its solutions parametrize the(More)
Integration of massive states as contractions of non linear σ-models. Abstract We consider the contraction of some non linear σ-models which appear in effective supergravity theories. In particular we consider the contractions of maximally symmetric spaces corresponding to N = 1 and N = 2 theories, as they appear in certain low energy effective supergravity(More)