This paper reviews issues and analyses in bilingual switching, or intercalation, and offers a topological model to represent the activity of code switching, sometimes under the same environmental conditions and with the same interlocutors. The topological notion of catastrophe is proposed as a means to model the various factors that influence code…

While traditional views of literacy assume that discourse is either written or oral, an alternative perspective considers different discourse samples as part of the linguistic repertoire of the speech community. Placing this perspective in a sociolinguistic context and taking language use rather than form as the starting point for analysis, it is…