Global existence problem in $T^3$-Gowdy symmetric IIB superstring cosmology

TL;DR

This paper proves global existence theorems for Gowdy symmetric spacetimes with type IIB superstring matter, using wave maps and specific time coordinates, advancing understanding of string cosmology models.

Contribution

It establishes global existence results for Gowdy symmetric IIB superstring cosmologies, introducing wave maps as a key analytical tool.

Findings

Global existence theorems for Gowdy symmetric spacetimes with IIB matter

Wave map formulation of the evolution system

Use of areal and constant mean curvature time coordinates

Abstract

We show global existence theorems for Gowdy symmetric spacetimes with type IIB stringy matter. The areal and constant mean curvature time coordinates are used. Before coming to that, it is shown that a wave map describes the evolution of this system.