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8 papers · 2 filters
On BPS preons, generalized holonomies and D=11 supergravities
I. A. Bandos, J. A. de Azcarraga, J. M. Izquierdo +2
We develop the BPS preon conjecture to analyze the supersymmetric solutions of D=11 supergravity. By relating the notions of Killing spinors and BPS preons, we develop a moving G-f…
Generalized Virasoro anomaly and stress tensor for dilaton coupled theories
A. Fabbri, S. Farese, J. Navarro-Salas
We derive the anomalous transformation law of the quantum stress tensor for a 2D massless scalar field coupled to an external dilaton. This provides a generalization of the Virasor…
D=4 supergravity dynamically coupled to superstring in a superfield Lagrangian approach
Igor A. Bandos, Jose M. Isidro
We elaborate a full superfield description of the interacting system of dynamical D=4, N=1 supergravity and dynamical superstring. As far as minimal formulation of the simple super…
Various Faces of Type IIA Supergravity
Igor A. Bandos, Alexei J. Nurmagambetov, Dmitri P. Sorokin
We derive a duality-symmetric action for type IIA D=10 supergravity by the Kaluza-Klein dimensional reduction of the duality-symmetric action for D=11 supergravity with the 3-form…
Super Heavy Dark Matter Anisotropies from D-particles in the Early Universe
N. E. Mavromatos, J. Papavassiliou
We discuss a way of producing anisotropies in the spectrum of superheavy Dark matter, which are due to the distortion of the inflationary space time induced by the recoil of D-part…
Supersymmetric string model with 30 kappa--symmetries in an extended D=11 superspace and 30/ 32 BPS states
I. A. Bandos, J. A. de Azcarraga, M. Picon +1
A supersymmetric string model in the D=11 superspace maximally extended by antisymmetric tensor bosonic coordinates, , is proposed. It possesses 30 -symmetries and…