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
rounded.
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. 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, present work in progress
and exchange ideas and knowledge.
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.
Topics
Computable analysis
Complexity on real numbers
Constructive analysis
Domain theory and analysis
Theory of representations
Computable numbers, subsets and functions
Randomness and computable measure theory
Models of computability on real numbers
Realizability theory and analysis
Reverse analysis
Real number algorithms
Implementation of exact real number arithmetic
Invited Speakers
Ulrich Berger (Swansea, UK)
Takayuki Kihara (JAIST, Japan)
Cristóbal Rojas (Santiago, Chile)
Daniel Roy (Cambridge, UK)
Martin Ziegler (Darmstadt, Germany)
Scientific Programme Committee
Andrej Bauer (Ljubljana, Slovenia)
Laurent Bienvenu (Paris, France)
Hannes Diener (Siegen, Germany)
Cameron Freer (MIT, USA)
Akitoshi Kawamura (Tokyo, Japan)
Ker-I Ko, co-chair (Stony Brook, USA)
Arno Pauly (Cambridge, UK)
Robert Rettinger (Hagen, Germany)
Matthias Schröder (Vienna, Austria)
Ning Zhong, chair (Cincinnati, USA)
Organizing Committee
Anne-Lise Charbonnier (Nancy, France)
Hugo Férée (Nancy, France)
Emmanuel Hainry (Nancy, France)
Mathieu Hoyrup, chair (Nancy, France)
Emmanuel Jeandel (Nancy, France)
Romain Péchoux (Nancy, France)
Conference Picture
This group picture of CCA 2013 shows some participants:
Programme
The provisional programme of the conference is available here:
The conference venue is not in the city center.
There is only one hotel and a youth hostel close to the venue (10 minutes walk),
the others are downtown. The venue can be reached by taking the tram or the bus line 128.
Here are a few hotel suggestions:
The submission of regular papers is closed now. At this stage
authors are invited to submit a PDF abstract (typically 1-2 pages) as "informal presentation" via the following web page:
No full papers will be required and informal presentations can be based on ongoing research.
Dates
Submission deadline: April 1, 2013 Notification of authors: May 6, 2013 Submission deadline for informal presentations: May 20, 2013 Final version: May 27, 2013
CCA Steering Committee
Vasco Brattka, chair (Munich, Germany),
Peter Hertling (Munich, Germany),
Ker-I Ko (Stony Brook, USA),
Klaus Weihrauch (Hagen, Germany),
Ning Zhong (Cincinnati, USA)
Further Information
For further information, please contact
Chairs of the Programme Committee,
(for submissions)
Mathieu Hoyrup, chair of the Organising Committee,
(for local information)
