Some Properties of Open - String Theories

TL;DR

This paper explores the properties of open-string theories and their potential relation to models of oriented closed strings, illustrating the construction of open descendants through simple examples.

Contribution

It introduces the concept of open descendants and demonstrates their key features with simple illustrative cases.

Findings

Open-string theories can be related to oriented closed string models.

Construction of open descendants reveals key features of open-string theories.

Simple examples illustrate the properties and potential relations of open and closed strings.

Abstract

Open-string theories may be related to suitable models of oriented closed strings. The resulting construction of ``open descendants'' is illustrated in a few simple cases that exhibit some of its key features.