47 citations · 393 across the 16 of their papers we have counts for
17 papers
Critical transitions in piecewise uniformly continuous concave quadratic ordinary differential equations
Iacopo P. Longo, Carmen Núñez, Rafael Obaya
A critical transition for a system modelled by a concave quadratic scalar ordinary differential equation occurs when a small variation of the coefficients changes dramatically the…
Supersymmetry, T-duality and Heterotic -corrections
Eric Lescano, Carmen A. Núñez, Jesús A. Rodríguez
Higher-derivative interactions and transformation rules of the fields in the effective field theories of the massless string states are strongly constrained by space-time symmetrie…
Exploring the landscape of CHL strings on T^d
Anamaria Font, Bernardo Fraiman, Mariana Graña +2
Compactifications of the heterotic string on special T^d/Z_2 orbifolds realize a landscape of string models with 16 supercharges and a gauge group on the left-moving sector of redu…
New non-perturbative de Sitter vacua in -complete cosmology
Carmen A. Núñez, Facundo Emanuel Rost
The -complete cosmology developed by Hohm and Zwiebach classifies the invariant theories involving metric, -field and dilaton that only depend on…
Exploring the landscape of heterotic strings on T^d
Anamaría Font, Bernardo Fraiman, Mariana Graña +2
Compactifications of the heterotic string on T^d are the simplest, yet rich enough playgrounds to uncover swampland ideas: the U(1)^{d+16} left-moving gauge symmetry gets enhanced…
On the solvability of the Yakubovich linear-quadratic infinite horizon minimization problem
Roberta Fabbri, Carmen Núñez
The Yakubovich Frequency Theorem, in its periodic version and in its general nonautonomous extension, establishes conditions which are equivalent to the global solvability of a min…
Existence of global attractor for a nonautonomous state-dependent delay differential equation of neuronal type
Cinzia Elia, Ismael Maroto, Carmen Núñez +1
The analysis of the long-term behavior of the mathematical model of a neural network constitutes a suitable framework to develop new tools for the dynamical description of nonauton…
Li-Yorke chaos in nonautonomous Hopf bifurcation patterns - I
Carmen Núñez, Rafael Obaya
We analyze the characteristics of the global attractor of a type of dissipative nonautonomous dynamical systems in terms of the Sacker and Sell spectrum of its linear part. The mod…
Exponential stability for nonautonomous functional differential equations with state-dependent delay
Ismael Maroto, Carmen Núñez, Rafael Obaya
The properties of stability of compact set which is positively invariant for a semiflow determined by a f…
Coulomb integrals and conformal blocks in the AdS3-WZNW model
Sergio M. Iguri, Carmen A. Núñez
We study spectral flow preserving four-point correlation functions in the AdS3-WZNW model using the Coulomb gas method on the sphere. We present a multiple integral realization of…
Three-point functions in superstring theory on AdS3xS3xT4
Carlos A. Cardona, Carmen A. Núñez
We consider R and NS spectral flow sectors of type IIB superstring theory on AdS(3)xS(3)xT(4) in the context of the AdS(3)/CFT(2) correspondence. We present a derivation of the ver…
Fusion rules and four-point functions in the AdS3 WZNW model
Walter H. Baron, Carmen A. Núñez
We study the operator product expansion in the AdS WZNW model. The OPE of primary fields and their spectral flow images is computed from the analytic continuation of the expres…
Type IIB orientifolds on Gepner points
Gerardo Aldazabal, Eduardo C. Andrés, Mauricio Leston +1
We study various aspects of orientifold projections of Type IIB closed string theory on Gepner points in different dimensions. The open string sector is introduced, in the usual co…
Interacting strings on AdS_3
Gastón Giribet, Carmen Núñez
We consider string theory on AdS_3 in terms of the Wakimoto free field representation. The scattering amplitudes for N unitary tachyons are analysed in the factorization limit and…
Interaction of moving D-branes on orbifolds
Faheem Hussain, Roberto Iengo, Carmen Núñez +1
We use the boundary state formalism to study the interaction of two moving identical D-branes in the Type II superstring theory compactified on orbifolds. By computing the velocity…
Axion production from gravitons off interacting 0-branes
Faheem Hussain, Roberto Iengo, Carmen Núñez
We study axion-graviton scattering from a system of two D-branes in a Type II superstring theory, a process which does not occur on a single brane. The two D-branes interact…
AN EXACT COSMOLOGICAL SOLUTION TO STRING THEORY
Oscar Jofre, Carmen Núñez
A homogeneous anisotropic four dimensional spacetime with Lorentzian signature is constructed from an ungauged WZW model based on a non-semisimple Lie group. The associated non-lin…