The inflationary solutions with o(2,2) duality symmetry in string cosmologies

摘要

The low energy duality string model is investigated in time-dependent metric, torsion, dilaton background fields and potential fields, the inflationary solutions for string cosmologies are obtained when the space-time dimension is D=3. It is found that the new cosmological solutions can be generated through O(d, d) duality transformations. [References: 16]