2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54236I present an outline for cosmological evolution in the framework of string theory with emphasis on a phase of dilaton-driven kinetic inflation. It is shown that a typical background of stochastic gravitational radiation is generated, with strength that may allow its detection in future gravity wave experiments.11 pages, latex, 1 figure icluded as an epsf fileHigh Energy Physics - TheoryAstrophysicsGeneral Relativity and Quantum Cosmologytext