Technical Report MSC-2006-24

TR#:MSC-2006-24
Class:MSC
Title: Look-ahead finite-memory automata
Authors: Daniel Zeitlin
Supervisors: Michael Kaminski
PDFMSC-2006-24.pdf
Abstract: We introduce and study a new model of computation dealing with infinite alphabets.

Our model is an extension of finite-memory automata (FMA) and is called look-ahead finite-memory automaton (LFMA). We show that LFMA languages possess all closure and decision properties of FMA languages and, in addition are closed under reversing.

Also we introduce a new notion of a regular expression and a regular grammar over an infinite alphabet and show their equivalence to LFMA.

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