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Publications Influence

New supergravities with central charges and Killing spinors in 2+1 dimensions

- P. Howe, J. M. Izquierdo, G. Papadopoulos, P. Townsend
- Physics
- 5 May 1995

Abstract We construct a new class of ( p , q )-extended Poincare supergravity theories in 2+1 dimensions as Chern-Simons theories of supersymmetry algebras with both central and automorphism charges.… Expand

135 22- PDF

Lie Groups, Lie Algebras, Cohomology and some Applications in Physics

- J. Azcárraga, J. M. Izquierdo
- Physics, Mathematics
- 1 November 1995

Preface 1. Lie groups, fibre bundles and Cartan calculus 2. Connections and characteristic classes 3. A first look at cohomology of groups and related topics 4. An introduction to abstract group… Expand

291 20

Dyonic Membranes

- J. M. Izquierdo, N. Lambert, G. Papadopoulos, P. Townsend
- Physics
- 31 August 1995

We present dyonic multi-membrane solutions of the N=2 D=8 supergravity theory that serves as the effective field theory of the T 2-compactified type II su-perstring theory. The 'electric' charge is… Expand

106 11- PDF

Supersymmetric spacetimes in (2+1) adS-supergravity models

- J. M. Izquierdo, P.K.Townsend
- Physics
- 17 January 1995

We find a class of (2+1)-dimensional spacetimes admitting Killing spinors appropriate to (2,0) adS-supergravity. The vacuum spacetimes include anti-de Sitter (adS) space and charged extreme black… Expand

83 9- PDF

n-ary algebras: a review with applications

- J. Azcárraga, J. M. Izquierdo
- Physics, Mathematics
- 6 May 2010

This paper reviews the properties and applications of certain n-ary generalizations of Lie algebras in a self-contained and unified way. These generalizations are algebraic structures in which the… Expand

154 8- PDF

The geometry of branes and extended superspaces

- C. Chryssomalakos, J. A. D. Azcárraga, J. M. Izquierdo, J. C. C. Bueno
- Physics, Mathematics
- 20 April 1999

Abstract We argue that a description of supersymmetric extended objects from a unified geometric point of view requires an enlargement of superspace. To this aim we study in a systematic way how… Expand

91 7- PDF

Generating Lie and gauge free differential (super)algebras by expanding Maurer–Cartan forms and Chern–Simons supergravity

- J. Azcárraga, J. M. Izquierdo, M. Picón, O. Varela
- Physics, Mathematics
- 31 December 2002

Abstract We study how to generate new Lie algebras G (N 0 ,…,N p ,…,N n ) from a given one G . The (order by order) method consists in expanding its Maurer–Cartan one-forms in powers of a real… Expand

118 5- PDF

An introduction to some novel applications of Lie algebra cohomology in mathematics and physics

- J. Azcárraga, J. M. Izquierdo, J. Bueno
- Mathematics, Physics
- 2001

This paper has been partially supported by a research grant from the MEC, Spain
(PB96-0756). J. C. P. B. wishes to thank the Spanish MEC and the CSIC for an FPI grant.

27 4- PDF

BPS states in M theory and twistorial constituents.

- I. Bandos, J. A. de Azcárraga, J. M. Izquierdo, J. Lukierski
- Physics, Medicine
- Physical review letters
- 17 January 2001

We provide a complete algebraic description of Bogomol'nyi-Prasad-Sommerfield (BPS) states in M theory in terms of primary constituents that we call BPS preons. We argue that any BPS state preserving… Expand

77 4- PDF

Supertwistors, massive superparticles and κ-symmetry

- J. Azcárraga, J. M. Izquierdo, J. Lukierski
- Physics, Mathematics
- 15 August 2008

We consider a D = 4 two-twistor lagrangian for a massive particle that incorporates the mass-shell condition in an algebraic way, and extend it to a two-supertwistor model with N = 2 supersymmetry… Expand

12 3- PDF

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