**An Introduction to Non-perturbative String Theory**

by Ashoke Sen

**Publisher**: arXiv 1998**Number of pages**: 130

**Description**:

In this review I discuss some basic aspects of non-perturbative string theory. The topics include test of duality symmetries based on the analysis of the low energy effective action and the spectrum of BPS states, relationship between different duality symmetries, an introduction to M- and F-theories, black hole entropy in string theory, and Matrix theory.

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