Eighteenth International Conference on Computability and Complexity in Analysis
July 26-28, 2021, virtual
Note
CCA 2021 will take place online as a virtual conference, technically organized by the Universität der Bundeswehr München.
The conference link will be distributed to all registered participants.
Scope
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.
If full versions of papers are already available as technical report or arXiv version, then
corresponding links should be added to the reference list.
Final versions of abstracts might be distributed to participants in hardcopy and/or in
electronic form.
Dates
Submission deadline: June 1, 2021
Notification of authors: July 1, 2021
Final version: July 12, 2021
Registration
Participants have to register for CCA 2021 via the
Registration Form.
There are no fees involved.
The technical meeting details will be sent to registered participants only.
Schedule
This is a preliminary schedule that might still be subject to changes!
In cases of doubts regarding time zones that are displayed in this electronic version of the calendar,
please check the printable program below, which is provided in the Central European Summer Time Zone (CEST).
The program starts at 9:30h CEST and ends on 17:00h CEST on each day.
The following screen shot shows only a few of the about 100 registered participants of CCA 2021:
CCA Steering Committee
Vasco Brattka, chair (Munich, Germany and Cape Town, South Africa),
Peter Hertling (Munich, Germany),
Akitoshi Kawamura (Fukuoka, Japan),
Klaus Weihrauch (Hagen, Germany),
Ning Zhong (Cincinnati, USA),
Martin Ziegler (Daejeon, Republic of Korea)
Further Information
For further information, please contact
Guido Gherardi, chair of the Organizing Committee,
(for submissions)
Vasco Brattka, chair of the Organizing Committee,
(for technical information)
