Honors Theory of Computation, Spring'99

Homework 1

-- DATE DUE: Feb 1, 1999
-- PROBLEMS:
  1. Show how any Turing machine in the fundamental mode can be simulated by a pointer machine in the fundamental mode in such a way that time and space complexity are related by constant factors. You will need to establish some reasonable conventions for this correspondence.
  2. Show how any pointer machine in the fundamental mode can be simulated by a Turing machine in the fundamental mode. You need to make this simulation as ``efficient'' as possible in terms of time and space complexity.