Brane Symmetries Revisited: Symmetries of Tensile and Tensionless Branes in Possibly Degenerate Metrics and their Manifestations

TL;DR

This paper investigates the symmetries of tensile and tensionless branes in target spaces with potentially degenerate metrics, revealing both known and new symmetry results and discussing implications for bulk theories.

Contribution

It provides a comprehensive analysis of brane symmetries in degenerate metric backgrounds, extending known results and uncovering new symmetry structures.

Findings

Recovered known symmetries of strings and branes

Discovered new symmetry features in tensionless and degenerate cases

Discussed implications for bulk theories

Abstract

We analyse the symmetries of tensionless and tensile branes moving in a target space with a possibly degenerate metric, with the worldvolume metric remaining nondegenerate. We recover known results about symmetries of strings and branes as well as new results in the tensionless and degenerate-metric cases. We comment on ramifications in the corresponding bulk theories.