Logic List Mailing Archive

CCA 2005 (Computability and Complexity in Analysis (Kyoto, Aug 2005)


   First Announcement and Call for Papers

   C C A   2 0 0 5

   Second International Conference on
   Computability and Complexity in Analysis

   August 26-29, 2005, Kyoto, Japan



   Authors are invited to submit a PostScript or PDF version of
   a paper to the email address provided on the web site of the


   Submission:                        May 1, 2005
   Notification:                      June 5, 2005
   Camera-ready version:              July 3, 2005
   Satellite seminars and reception:  August 26, 2005
   Main conference:                   August 27-29, 2005

   The satellite seminars will consist of introductory lectures
   to CCA and related areas. More detailed information will
   soon be available on the web site of the conference.


   The conference is concerned with the theory of computability
   and complexity over real-valued data.

   Computability and complexity theory are two central areas
   of research in mathematical logic and theoretical computer
   science. Computability theory is the study of the limitations
   and abilities of computers in principle. Computational
   complexity theory provides a framework for understanding the
   cost of solving computational problems, as measured by the
   requirement for resources such as time and space.
   The classical approach in these areas is to consider
   algorithms as operating on finite strings of symbols from a
   finite alphabet. Such strings may represent various discrete
   objects such as integers or algebraic expressions, but cannot
   represent general real or complex numbers, unless they are

   Most mathematical models in physics and engineering, however,
   are based on the real number concept. Thus, a computability
   theory and a complexity theory over the real numbers and over
   more general continuous data structures is needed. Unlike the
   well established classical theory over discrete structures,
   the theory of computation over continuous data is still in
   its infancy, despite remarkable progress in recent years.
   Many important fundamental problems have not yet been studied,
   and presumably numerous unexpected and surprising results are
   waiting to be detected.

   Scientists working in the area of computation on real-valued
   data come from different fields, such as theoretical computer
   science, domain theory, logic, constructive mathematics,
   computer arithmetic, numerical mathematics and all branches
   of analysis. The conference provides a unique opportunity for
   people from such diverse areas to meet and exchange ideas and

   The topics of interest include foundational work on various
   models and approaches for describing computability and
   complexity over the real numbers. They also include
   complexity-theoretic investigations, both foundational and
   with respect to concrete problems, and new implementations of
   exact real arithmetic, as well as further developments of
   already existing software packages. We hope to gain new
   insights into computability-theoretic aspects of various
   computational questions from physics and from other fields
   involving computations over the real numbers.

   Scientific Program Committee:

   Vasco Brattka          (Cape Town, South Africa)
   Peter Hertling, chair  (Munich, Germany)
   Hajime Ishihara        (Ishikawa, Japan)
   Iraj Kalantari         (Macomb, USA)
   Ker-I Ko               (Stony Brook, USA)
   Vladik Kreinovich      (El Paso, USA)
   Jack H. Lutz           (Ames, USA)
   Joseph S. Miller       (Bloomington, USA)
   Robert Rettinger       (Hagen, Germany)
   Matthias Schr?der      (Edinburgh, Scotland)
   Alex Simpson           (Edinburgh, Scotland)
   Klaus Weihrauch        (Hagen, Germany)
   Atsushi Yoshikawa      (Kyushu, Japan)
   Xizhong Zheng          (Cottbus, Germany)
   Ning Zhong             (Cincinnati, USA)
   Martin Ziegler         (Paderborn, Germany)

   Organizing Committee:

   Hiroyasu Kamo          (Nara, Japan)
   Takakazu Mori          (Kyoto, Japan)
   Izumi Takeuti          (Toho, Japan)
   Hideki Tsuiki, chair   (Kyoto, Japan)
   Yoshiki Tsujii         (Kyoto, Japan)
   Mariko Yasugi          (Kyoto, Japan)

   Invited Speakers

   Vasco Brattka          (Cape Town, South Africa)
   Masami Hagiya          (Tokyo, Japan)
   Daisuke Takahashi      (Waseda, Japan)


   A technical report including the accepted papers will be
   distributed at the conference.

   It is planned to publish a special issue of the
   Journal of Complexity dedicated to the conference.
   After the workshop, the participants will be invited to submit
   their papers for publication in this special issue. The papers
   will be subject to the usual refereeing process of the journal.


   The conference will be held on the Yoshida Campus of
   Kyoto University.
   Kyoto was the imperial capital of Japan for over 1000 years
   until 1867. It has many famous temples, shrines, national
   treasures, and festivals, and it is still the cultural center
   of Japan. Kyoto is also known as an academic city with many
   universities and research institutes.

   Local Information

   Kyoto is about 100 km north-east of Kansai International
   Travel and on-site information will soon be available on the
   web site of the conference.


   The conference is supported by the Graduate School of Human
   and Environmental Studies, Kyoto University.