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Supergravity and Superstrings: A Geometric Perspective

- L. Castellani, R. D'Auria, P. Fré
- Physics
- 1 September 1991

284 24

Symmetries in constrained Hamiltonian systems

- L. Castellani
- Physics
- 15 October 1982

We derive an algorithm for the construction of all the gauge generators of a constrained hamiltonian theory. Dirac's conjecture that all secondary first-class constraints generate symmetries is… Expand

214 19

A classification of compactifying solutions for d =11 supergravity

- L. Castellani, L. Romans, N. Warner
- Physics
- 23 July 1984

Abstract Supergravity in eleven dimensions is known to have classical solutions of the type (anti-de Sitter space-time) × (7-dimensional Einstein space). We give a list of all homogeneous 7-manifolds… Expand

134 14

Noncommutative D=4 gravity coupled to fermions

- P. Aschieri, L. Castellani
- Physics, Mathematics
- 23 February 2009

We present a noncommutative extension of Einstein-Hilbert gravity in the context of twist-deformed space-time, with a -product associated to a quite general triangular Drinfeld twist. In particular… Expand

68 6- PDF

Supergravity and superstrings: A Geometric perspective.Vol 1

- L. Castellani, R. D'Auria, P. Fré
- Physics
- 1991

48 6

SU(3)⊗SU(2)⊗U(1) from D=11 supergravity

- L. Castellani, R. D'Auria, P. Fré
- Physics
- 9 July 1984

In this paper we show that D = 11 supergravity admits an infinite discrete class of solutions having the phenomenological group SU(3) ⊗ SU(2) ⊗ U(1) as a symmetry of the internal space M7. These… Expand

90 3

AN INTRODUCTION TO NONCOMMUTATIVE DIFFERENTIAL GEOMETRY ON QUANTUM GROUPS

- P. Aschieri, L. Castellani
- Physics, Mathematics
- 26 July 1992

We give a pedagogical introduction to the differential calculus on quantum groups by stressing at all stages the connection with the classical case (q→1 limit). The Lie derivative and the contraction… Expand

105 2- PDF

Noncommutative gravity coupled to fermions: second order expansion via Seiberg-Witten map

- P. Aschieri, L. Castellani
- Physics
- 21 November 2011

A bstractWe use the Seiberg-Witten map (SW map) to expand noncommutative gravity coupled to fermions in terms of ordinary commuting fields. The action is invariant under general coordinate… Expand

35 2- PDF

SPECIAL KAHLER GEOMETRY: AN INTRINSIC FORMULATION FROM N=2 SPACE-TIME SUPERSYMMETRY

- L. Castellani, R. D'Auria, S. Ferrara
- Physics
- 3 May 1990

Abstract N =2, 4D supergravity coupled to vector multiplets (1, 1 2 , 0) is reanalysed in a geometrical setting. By requiring the closure of the supersymmetry transformation laws, we find a… Expand

119 2

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