A topological view of some problems in complexity theory

  • Michael Sipser
Invited Lectures
Part of the Lecture Notes in Computer Science book series (LNCS, volume 176)


We present a new, combinatorial proof of the classical theorem that the analytic sets are not closed under complement. Possible connections with questions in complexity theory are discussed.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • Michael Sipser
    • 1
  1. 1.Mathematics DepartmentMassachusetts Institute of TechnologyCambridge

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