Add to ORKGSingularity-free cosmological solutions may be obtained from the string action at tree level if the dimension of the space-time is greater than 10 and if brane configurations are taken into account. The behaviour of the dilaton field in this case is also regular. Asymptotically a radiative phase is attained indicating a smooth transition to the standard cosmological model
We study quintessence-driven, spatially flat, expanding FRW cosmologies that arise naturally from st...
A string cosmology scenario ("pre-big-bang") postulates that the evolution of the Universe starts fr...
We consider the O(a') string effective action, with Gauss-Bonnet curvature-squared and forth-order d...
We study nonsingular cosmological scenarios in a general $D$-dimensional string effective action of ...
Fundamental theories, like strings, supergravity, Kaluza-Klein, lead after dimensional reduction and...
We discuss some aspects of string cosmology with an emphasis on the role played by the dilaton. A co...
We investigate $(n+1)$-dimensional string-dilaton cosmology with effective dilaton potential in pres...
We examine in a cosmological context the conditions for unbroken supersymmetry in N=1 supergravity i...
We consider the problem of constructing a non-singular inflationary universe in stringy gravity via ...
We present a class of graviton-dilaton models in which a homogeneous isotropic universe, such as our...
We compute the exact string vacuum backgrounds corresponding to the noncompact coset theory SU(2,1)/...
We study the effect of the solitonic degree of freedom in string cosmology following the line of Ram...
I discuss cosmological models either derived from, or inspired by, string theory or M-theory. In par...
We consider cosmological solutions of string and M-theory compactified to four dimensions by giving ...
We investigate the evolution of the homogeneous and isotropic universe within the framework of the e...
We study quintessence-driven, spatially flat, expanding FRW cosmologies that arise naturally from st...
A string cosmology scenario ("pre-big-bang") postulates that the evolution of the Universe starts fr...
We consider the O(a') string effective action, with Gauss-Bonnet curvature-squared and forth-order d...
We study nonsingular cosmological scenarios in a general $D$-dimensional string effective action of ...
Fundamental theories, like strings, supergravity, Kaluza-Klein, lead after dimensional reduction and...
We discuss some aspects of string cosmology with an emphasis on the role played by the dilaton. A co...
We investigate $(n+1)$-dimensional string-dilaton cosmology with effective dilaton potential in pres...
We examine in a cosmological context the conditions for unbroken supersymmetry in N=1 supergravity i...
We consider the problem of constructing a non-singular inflationary universe in stringy gravity via ...
We present a class of graviton-dilaton models in which a homogeneous isotropic universe, such as our...
We compute the exact string vacuum backgrounds corresponding to the noncompact coset theory SU(2,1)/...
We study the effect of the solitonic degree of freedom in string cosmology following the line of Ram...
I discuss cosmological models either derived from, or inspired by, string theory or M-theory. In par...
We consider cosmological solutions of string and M-theory compactified to four dimensions by giving ...
We investigate the evolution of the homogeneous and isotropic universe within the framework of the e...
We study quintessence-driven, spatially flat, expanding FRW cosmologies that arise naturally from st...
A string cosmology scenario ("pre-big-bang") postulates that the evolution of the Universe starts fr...
We consider the O(a') string effective action, with Gauss-Bonnet curvature-squared and forth-order d...