Answered: 2. Find pushdown automata that accept…

2. Find pushdown automata that accept the following languages: (a) L₁= {a"b" n ≥ 0} U {a"b²nn ≥ 0} (b) L₂= {abci jor j k}

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Problems on Turing Machines

In the computational world, the Turing machine is a powerful computation engine. The invention of the Turing Machine is done by Alan Turing in 1936. A Turing Machine (TM) is a diagrammatic model of a fictional computer. It determines an output from a set of input variables using a pre-defined set of rules. It is used to get around the limitations of finite automata and pushdown automata.

Question

2. Find pushdown automata that accept the following languages:
(a) L₁= {a"b|n>0}U {ab²n/n >0}
(b) L₂= {abci jor j k}

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