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  • © 2016

Descriptive Set Theoretic Methods in Automata Theory

Decidability and Topological Complexity

  • This thesis is devoted to studying problems of automata theory from the point of view of descriptive set theory
  • Providing effective characterisations of regular languages of infinite trees
  • For game automata, for languages of thin trees
  • Includes supplementary material: sn.pub/extras

Part of the book series: Lecture Notes in Computer Science (LNCS, volume 9802)

Part of the book sub series: Theoretical Computer Science and General Issues (LNTCS)

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Table of contents (12 chapters)

  1. Front Matter

    Pages I-XIII
  2. Basic Notions

    • Michał Skrzypczak
    Pages 1-26
  3. Subclasses of Regular Languages

    1. Front Matter

      Pages 27-27
    2. Introduction

      • Michał Skrzypczak
      Pages 29-36
    3. Collapse for Unambiguous Automata

      • Michał Skrzypczak
      Pages 37-43
    4. When a Büchi Language Is Definable in wmso

      • Michał Skrzypczak
      Pages 45-69
    5. Index Problems for Game Automata

      • Michał Skrzypczak
      Pages 71-89
  4. Thin Algebras

    1. Front Matter

      Pages 91-91
    2. When a Thin Language Is Definable in wmso

      • Michał Skrzypczak
      Pages 93-119
    3. Recognition by Thin Algebras

      • Michał Skrzypczak
      Pages 121-135
    4. Uniformization on Thin Trees

      • Michał Skrzypczak
      Pages 137-156
  5. Extensions of Regular Languages

    1. Front Matter

      Pages 157-157
    2. Descriptive Complexity of mso+u

      • Michał Skrzypczak
      Pages 159-171
    3. Undecidability of mso+u

      • Michał Skrzypczak
      Pages 173-181
    4. Conclusions

      • Michał Skrzypczak
      Pages 205-206
  6. Back Matter

    Pages 207-211

About this book

The book is based on the PhD thesis “Descriptive Set Theoretic Methods in Automata Theory,” awarded the E.W. Beth Prize in 2015 for outstanding dissertations in the fields of logic, language, and information. The thesis reveals unexpected connections between advanced concepts in logic, descriptive set theory, topology, and automata theory and provides many deep insights into the interplay between these fields. It opens new perspectives on central problems in the theory of automata on infinite words and trees and offers very impressive advances in this theory from the point of view of topology.

"…the thesis of Michał Skrzypczak offers certainly what we expect from excellent mathematics: new unexpected connections between a priori distinct concepts, and proofs involving enlightening ideas.” Thomas Colcombet.


Reviews

“The author applies, with considerable success, a breadth of methods covering descriptive set theory, automata theory, logic and even some classical set theory, to questions on ω- and tree automata. ... he has managed to present basic material and his own results in such a way as to make these developments accessible to the reader. ... should be useful for those who wish to keep in touch with recent developments in automata theory.” (Roger Villemaire, zbMATH 1375.03003, 2018)



“The book shows how various techniques from descriptive set theory and logic can be effectively used in the study and understanding of automata theory. The interplay between topological and automata-theoretic methods is presented very nicely and should be useful to researchers in this area.” (Rana Barua, Mathematical Reviews, September, 2017)

Authors and Affiliations

  • University of Warsaw , Warsaw, Poland

    Michał Skrzypczak

About the author

Michał Skrzypczak completed a double degree master program in Mathematics and Computer Science at University of Warsaw. His PhD thesis, defended in December 2014, was jointly supervised by Prof. Mikołaj Bojańczyk (Warsaw) and Prof. Igor Walukiewicz (Bordeaux). During the academic year 2014/2015 he was a PostDoc at IRIF in Paris, under supervision of Prof. Thomas Colcombet. Currently, Michał Skrzypczak is an assistant Professor at University of Warsaw.

Bibliographic Information

Buy it now

Buying options

eBook USD 39.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book USD 54.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Other ways to access