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  • © 2012

Computation, Physics and Beyond

International Workshop on Theoretical Computer Science, WTCS 2012, Dedicated to Cristian S. Calude on the Occasion of His 60th Birthday, Auckland, New Zealand, February 21-24, 2012, Revised Selected and Invited Papers

  • State-of-the-art research
  • Unique visibility
  • Includes invited lectures by eminent researchers in theoretical computer science

Part of the book series: Lecture Notes in Computer Science (LNCS, volume 7160)

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

Conference series link(s): WTCS: International Conference on Teaching and Computational Science

Conference proceedings info: WTCS 2012.

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Table of contents (32 chapters)

  1. Front Matter

  2. Life Story

    1. The Art of Reaching the Age of Sixty

      • Solomon Marcus
      Pages 1-19
  3. Complexity, Computability and Randomness

    1. Random Semicomputable Reals Revisited

      • Laurent Bienvenu, Alexander Shen
      Pages 31-45
    2. Constructing the Infimum of Two Projections

      • Douglas S. Bridges, Luminita S. Vîţă
      Pages 46-58
    3. Bounded Randomness

      • Paul Brodhead, Rod Downey, Keng Meng Ng
      Pages 59-70
    4. A Note on Blum Static Complexity Measures

      • Cezar Câmpeanu
      Pages 71-80
    5. On Degrees of Randomness and Genetic Randomness

      • Monica Dumitrescu
      Pages 94-104
    6. Learning Families of Closed Sets in Matroids

      • Ziyuan Gao, Frank Stephan, Guohua Wu, Akihiro Yamamoto
      Pages 120-139
    7. Invariance and Universality of Complexity

      • Helmut Jürgensen
      Pages 140-158
    8. Demuth’s Path to Randomness

      • Antonín Kučera, André Nies
      Pages 159-173
    9. On Oscillation-Free Chaitin h-Random Sequences

      • Ludwig Staiger
      Pages 194-202
    10. Computer Runtimes and the Length of Proofs

      • Hector Zenil
      Pages 224-240
    11. Symmetry of Information: A Closer Look

      • Marius Zimand
      Pages 241-246
  4. Physics, Philosophy and Computation

About this book

This Festschrift volume has been published in honor of Cristian Calude on the occasion of his 60th birthday and contains contributions from invited speakers and regular papers presented at the International Workshop on Theoretical Computer Science, WTCS 2012, held in Auckland, New Zealand, in February 2012.

Cristian Calude has made a significant contribution to research in computer science theory. Along with early work by Chaitin, Kučera, Kurtz, Solovay, and Terwijn his papers published in the mid-1990s jointly with Khoussainov, Hertling, and Wang laid the foundation for the development of modern theory of algorithmic randomness. His work was essential for establishing the leading role of New Zealand in this area.

The research interests of Cristian Calude are reflected in the topics covered by the 32 papers included in this book, namely: algorithmic information theory, algorithms, automata and formal languages, computing and natural sciences, computability and applications, logic and applications, philosophy of computation, physics and computation, and unconventional models of computation. They have been organized into four parts. The first part consists of papers discussing his life achievements. This is followed by papers in the three general areas of complexity, computability, and randomness; physics, philosophy (and logic), and computation; and algorithms, automata, and formal models (including unconventional computing).

Editors and Affiliations

  • Department of Computer Science, University of Auckland, Auckland, New Zealand

    Michael J. Dinneen, Bakhadyr Khoussainov, André Nies

Bibliographic Information

Buy it now

Buying options

eBook USD 39.99
Price excludes VAT (USA)
  • Available as 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