Exirifard, Ghasem20052011-09-0720052011-09-072005JHEP 07(2005)047https://openscience.sissa.it/handle/1963/1750The quadratic alpha' corrections to the two-dimensional black hole and to its T-dual are calculated. These backgrounds are used to write the covariant form of the alpha'2 corrections to the T-duality for general time-dependent backgrounds of dilaton and diagonal metric in the bosonic string theory.183213 bytesapplication/pdfen-USPreprint