No abstract

The Noether charge algebras of D-brane actions contain two anomalous terms which modify the standard supertranslation algebra. We use a cocycle approach to derive associated spectra of topological charge algebras. The formalism is applied to (p, q)-strings and the D-membrane. The resulting spectra contain known algebras which allow the construction of extended superspace actions.

The known extended algebras associated with p-branes are shown to be generated as topological charge algebras of the standard pbrane actions. A representation of the charges in terms of superspace forms is constructed. The charges are shown to be the same in standard/extended superspace formulations of the action.