41 citations · 59 across the 8 of their papers we have counts for
8 papers
Tri-vector symmetry of 11 dimensional supergravity
Walter H. Baron, Diego Marques, Carmen A. Nunez +1
Kaluza-Klein reductions of 11-dimensional supergravity lead to exceptional global symmetries in lower dimensions. Certain non-geometric elements of these symmetries, parameterized…
Hidden symmetries from extra dimensions
Marco Ciafardini, Diego Marques, Carmen Nunez +1
In Kaluza-Klein compactifications, some symmetries of the higher dimensional theory are preserved in lower dimensions, others are broken, and occasionally, there are symmetry enhan…
symmetry of heterotic supergravity
Walter H. Baron, Carmen A. Nunez, Jesus A. Rodriguez
The low energy effective action describing the Kaluza-Klein reduction of string theory on a -torus possesses a continuous O() global symmetry. The non-geometric piece of t…
QUANTUM CORRECTIONS AND EXTREMAL BLACK HOLES
G. Alejandro, F. D. Mazzitelli, C. Núñez
We consider static solutions of two dimensional dilaton gravity models as toy laboratories to address the question of the final fate of black holes. A non perturbative correction t…
Cyclic Permutations in Kazama-Suzuki String Models
G. Aldazabal, I. Allekotte, E. Andres +1
Moddings by cyclic permutation symmetries are performed in 4-dimensional strings, built up from N=2 coset models of the type . For some exemplifying…
Strings in Plane Wave Backgrounds Revisited
O. Jofre, C. Núñez
String theory in an exact plane wave background is explored. A new example of singularity in the sense of string theory for nonsingular spacetime metric is presented. The 4-tachyon…
Nondiagonal Coset Models and their PoincarÉ Polynomials
G. Aldazabal, I. Allekotte, E. Andrés +1
coset models of the type with nondiagonal modular invariants for both and are considered. Poincaré polynomials of the correspondi…
N=2 Coset Compactifications with Non-Diagonal Invariants
G. Aldazabal, I. Allekotte, A. Font +1
We consider 4-dimensional string models obtained by tensoring N=2 coset theories with non-diagonal modular invariants. We present results from a systematic analysis including moddi…