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Publications Influence

A new maximally supersymmetric background of IIB superstring theory

- M. Blau, J. Figueroa-O'Farrill, Christopher Hull, G. Papadopoulos
- Physics, Mathematics
- 26 October 2001

We present a maximally supersymmetric IIB string background. The geometry is that of a conformally flat lorentzian symmetric space G/K with solvable G, with a homogeneous five-form flux. We give the… Expand

617 44- PDF

κ-Symmetry, Supersymmetry and Intersecting Branes

- E. Bergshoeff, R. Kallosh, T. Ort́ın, G. Papadopoulos
- Physics
- 7 May 1997

We present a new form of κ-symmetry transformations for D-branes in which the dependence on the Born-Infeld field strength is expressed as a relative rotation on the left- and right-moving fields… Expand

217 40- PDF

Penrose limits and maximal supersymmetry

- M. Blau, J. Figueroa-O'Farrill, Christopher Hull, G. Papadopoulos
- Physics, Mathematics
- 14 January 2002

We show that the maximally supersymmetric pp-wave of IIB superstring and M-theories can be obtained as a Penrose limit of the supersymmetric AdS × S solutions. In addition, we find that in a certain… Expand

474 28- PDF

Penrose limits, supergravity and brane dynamics

- M. Blau, J. Figueroa-O'Farrill, G. Papadopoulos
- Physics, Mathematics
- 18 February 2002

We investigate the Penrose limits of classical string and M-theory backgrounds. We prove that the number of (super)symmetries of a supergravity background never decreases in the limit. We classify… Expand

298 25- PDF

Duality of type-II 7-branes and 8-branes

- E. Bergshoeff, M. D. Roo, M. Green, G. Papadopoulos, P. Townsend
- Physics
- 26 January 1996

We present a version of ten-dimensional IIA supergravity containing a 9-form potential for which the field equations are equivalent to those of the standard, massless, IIA theory for vanishing… Expand

372 24- PDF

Complex geometry of conifolds and a 5-brane wrapped on a 2-sphere

- G. Papadopoulos, A. Tseytlin
- Physics
- 5 December 2000

We investigate solutions of type II supergravity which have the product R 1,3 ×M 6 structure with non-compact M 6 factor and which preserve at least four supersymmetries. In particular, we consider… Expand

158 24- PDF

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

Intersecting M-branes

- G. Papadopoulos, P. Townsend
- Physics
- 13 March 1996

Abstract We present the magnetic duals of Guven's electric-type solutions of D = 11 supergravity preserving 1 4 or 1 8 of the D = 11 supersymmetry. We interpret the electric solutions as n orthogonal… Expand

264 13- PDF

Sub-arcsecond [ FeII ] spectro-imaging of the DG Tau jet : Periodic bubbles and a dusty disk wind ?

- J. Ballesteros-Paredes, E. Vázquez-Semadeni, +15 authors J. Tan
- 2011

s of recently accepted papers Sub-arcsecond [FeII] spectro-imaging of the DG Tau jet: Periodic bubbles and a dusty disk wind? V. Agra-Amboage, C. Dougados, S. Cabrit and J. Reunanen 1 UJF-Grenoble… Expand

31 12- PDF

Solvable model of strings in a time-dependent plane-wave background

- G. Papadopoulos, J. Russo, A. Tseytlin
- Physics
- 29 November 2002

We investigate a string model defined by a special plane-wave metric ds2 = 2du dv ? ?(u)x2 du2 + dx2 with ? = k/u2 and k = const > 0. This metric is a Penrose limit of some cosmological, Dp-brane and… Expand

127 12- PDF

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