-  Author: D. van Melkebeek.
 
-  Reference: In 
     G. Paun, G. Rozenberg, and A. Salomaa (eds.),
     Current Trends in Theoretical Computer Science, pages 265-291,
     World Scientific, 2004.
 
-  Earlier version:
  
  - D. van Melkebeek.
     Time-Space Lower Bounds for
     Satisfiability. In
     Bulletin of the European Association for Theoretical
     Computer Science, 73:57-77, 2001. 
  
 
 
Abstract
We survey the recent lower bounds on the running time of 
general-purpose random-access machines that solve satisfiability 
in a small amount of work space, and related lower bounds for
satisfiability in nonuniform models. The same bounds apply to
almost all natural NP-complete problems known.