<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; text-align: center; line-height: normal;"><b class=""><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"><br class="">Continuity, Computability, Constructivity – From Logic to Algorithms</span></b></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; text-align: center; line-height: normal;"><b class=""><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"> (CCC 2021)</span></b><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"></span></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; text-align: center; line-height: normal;"><b class=""><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">In honour of Ulrich Berger’s 65th Birthday</span></b></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; text-align: center; line-height: normal;"><b class=""><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Birmingham / Online workshop</span></b></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; text-align: center; line-height: normal;"><b class=""><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"> 19 - 24 September 2021</span></b></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; text-align: center; line-height: normal;"><b class=""><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Second call for submissions</span></b></div><div class="" style="margin-top: 0px; margin-bottom: 0px; text-align: center; line-height: normal;"><b class=""><span class="" style="font-size: 14px; font-style: normal;"><a href="http://www.cs.bham.ac.uk/~axj/ccc2021" style="font-weight: normal; text-align: start;" class=""><font face="Lucida Grande" class="">www.cs.bham.ac.uk/~axj/ccc2021</font></a></span></b></div><div class="" style="margin-top: 0px; margin-bottom: 0px; text-align: center; line-height: normal;"><br class=""></div><div class="" style="text-align: left; font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; line-height: normal;"><span style="font-size: small;" class="">CCC is a workshop series that brings together researchers applying logical methods to the development of algorithms, with a particular focus on computation with infinite data, where issues of continuity, computability and constructivity play major roles. Specific topics include exact real number computation, computable analysis, effective descriptive set theory, constructive analysis, and related areas. The overall aim is to apply logical methods in these disciplines to provide a sound foundation for obtaining exact and provably correct algorithms for computations with real numbers and other continuous data, which are of increasing importance in safety critical applications and scientific computation.</span></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; line-height: normal;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"><br class=""></span></div><div class="" style="margin-top: 0px; margin-bottom: 0px; line-height: normal;"><span class=""><font class="" face="Tahoma" size="2"><b class=""><span class="" style="background-color: rgb(255, 255, 255);">Due to the COVID-19 pandemic and its consequences with respect to travelling and gathering together, the workshop will take place online.</span> </b></font></span></div><div class="" style="margin-top: 0px; margin-bottom: 0px; line-height: normal;"><span class=""><font face="Tahoma" size="2" class=""><br class=""></font></span></div><div class="" style="margin-top: 0px; margin-bottom: 0px; line-height: normal;"><span class=""><font face="Tahoma" size="2" class="">Previous workshops have been held in Cologne 2009, Trier 2012, Gregynog 2013, Ljubljana 2014, Kochel 2015, Nancy 2017, Faro 2018, Ljubljana 2019, Faro 2020 (online).</font></span></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; line-height: normal;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"><br class=""></span></div><div class="" style="margin-top: 0px; margin-bottom: 0px; line-height: normal;"><span class=""><font face="Tahoma" size="2" class="">The workshop is open to all researchers in the area.</font></span></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; line-height: normal;"><b class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"><br class=""></b></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; line-height: normal;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"><br class=""></span></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; line-height: normal;"><b class=""><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Scope: </span></b><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">The workshop specifically invites contributions in the areas of</span></div><ul class="" style="font-size: 13.333333015441895px;"><li class="" style="font-family: Tahoma;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"></span><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Exact real number computation,</span><span class="" style="font-size: 7pt; line-height: normal; font-family: "Times New Roman";"></span><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"></span></li><li class=""><font face="Tahoma, sans-serif" class="">Correctness of algorithms on infinite data,</font></li><li class="" style="font-family: Tahoma;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Computable analysis,</span><span class="" style="font-size: 10pt; font-family: Symbol;"></span></li><li class="" style="font-family: Tahoma;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Complexity of real numbers, real-valued functions, etc.</span></li><li class=""><font face="Tahoma, sans-serif" class="">Effective descriptive set theory,</font></li><li class="" style="font-family: Tahoma;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Domain theory,</span></li><li class="" style="font-family: Tahoma;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"></span>Constructive analysis,<span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"></span></li><li class="" style="font-family: Tahoma;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Category-theoretic approaches to computation on infinite data,</span></li><li class="" style="font-family: Tahoma;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Weihrauch degrees,</span><span class="" style="font-size: 10pt; font-family: Symbol;"><span class=""></span></span></li><li class="" style="font-family: Tahoma;">And related areas. </li></ul><font size="2" class=""><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"></span></font><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; text-indent: -0.25in; line-height: normal;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"><br class=""></span></div><div class="" style="font-size: 10pt; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px;"><b class=""><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Invited Speakers:</span></b><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"> </span></div><div class="" style="margin-top: 0px; margin-bottom: 0px;"><ul class="" style="max-width: 650pt; padding-bottom: 5pt;"><li class="">Suguman Bansal (U Penn)</li><li class="">Franz Brauße (U Manchester)</li><li class=""><font face="Tahoma" size="2" class="">Sewon Park (KAIST)</font></li><li class=""><font face="Tahoma" size="2" class="">Monika Seisenberger (Swansea U)</font></li><li class=""><font face="Tahoma" size="2" class="">Michael Yampolsky (U Toronto)</font></li></ul></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; line-height: normal;"><b class="" style="font-size: 10pt;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"><br class=""></span></b></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; line-height: normal;"><b class="" style="font-size: 10pt;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Tutorial Speaker:</span></b></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; line-height: normal;"><b class="" style="font-size: 10pt;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"><br class=""></span></b></div><div class="" style="margin-top: 0px; margin-bottom: 0px; line-height: normal;"><ul class="MailOutline"><li class=""><font face="Tahoma, sans-serif" size="2" class=""><b class=""><span class="" style="font-family: Tahoma; font-weight: normal; background-color: rgb(255, 255, 255);">André Platzer (CMU)</span></b></font></li></ul></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; text-align: center; line-height: normal;"><br class=""></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; text-align: center; line-height: normal;"></div><b class="" style="font-size: 13.333333015441895px; font-family: Tahoma;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"><div class=""><b class="" style="font-family: Tahoma;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"><br class=""></span></b></div>Submssion:</span></b><div class=""><font face="Tahoma, sans-serif" size="2" class=""><b class=""><br class=""></b></font></div><div class=""><font face="Tahoma, sans-serif" size="2" class="">Extended abstracts (1-2 pages) of original work are welcome.</font></div><div class=""><font face="Tahoma, sans-serif" size="2" class=""><br class=""></font></div><div class=""><font face="Tahoma, sans-serif" size="2" class=""><b class=""><br class=""></b></font></div><div class=""><b style="font-family: Tahoma, sans-serif;" class="">Deadline:</b></div><div class="" style="text-align: center;"><font face="Tahoma, sans-serif" size="2" class=""><b class="">30 August 2021</b></font></div><div class=""><font face="Tahoma, sans-serif" size="2" class=""><b class=""><br class=""></b></font></div><div class=""><font face="Tahoma, sans-serif" size="2" class=""><b class=""><br class=""></b></font></div><div class=""><font face="Tahoma, sans-serif" size="2" class=""><b class="">Upload your submission via EasyChair:</b></font></div><div class=""><font face="Tahoma, sans-serif" size="2" class=""><b class=""><br class=""></b></font></div><div class="" style="text-align: center;"><font class="" face="Lucida Grande"><b class=""><a href="https://easychair.org/conferences/?conf=ccc2021" style="font-weight: normal; text-align: start; font-size: 14px; font-style: normal;" class="">https://easychair.org/conferences/?conf=ccc2021</a></b></font></div><div class=""><font face="Tahoma, sans-serif" size="2" class=""><b class=""><br class=""></b></font></div><div class=""><font face="Tahoma, sans-serif" size="2" class=""><b class=""><br class=""></b></font></div><div class=""><div class=""><b class="" style="font-size: 13.333333015441895px; font-family: Tahoma;"><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Programme Committee:</span></b></div><div class=""><ul class="" style="font-family: Tahoma;"><li class=""><font size="2" class="">Ulrich Berger (Swansea)</font></li><li class=""><font size="2" class="">Daniel Graça (Faro)</font></li><li class=""><font size="2" class="">Achim Jung (co-chair) </font></li><li class=""><font size="2" class="">Milly Maietti (Padua)</font></li><li class=""><font size="2" class="">Elvira Mayordomo (Zaragoza)</font></li><li class=""><font size="2" class="">Norbert Müller (Trier)</font></li><li class=""><font size="2" class="">Paul Potgieter (Pretoria)</font></li><li class=""><font size="2" class="">Dieter Spreen (Siegen) (co-chair)</font></li><li class=""><font size="2" class="">Hideki Tsuiki (Kyoto)</font></li><div class="" style="font-size: 13.333333015441895px;"><br class=""></div></ul><font size="2" class=""><span lang="DE" class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"></span></font><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; text-indent: -0.25in; line-height: normal;"><span lang="DE" class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;"><br class=""></span></div><div class="" style="font-size: 13.333333015441895px; font-family: Tahoma; margin-top: 0px; margin-bottom: 0px; line-height: normal;"><b class=""><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Organizing Committee:</span></b></div><ul class="" style="font-size: 13.333333015441895px; font-family: Tahoma;"><li class=""><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Achim Jung (Birmingham)</span></li><li class=""><span class="" style="font-size: 10pt; font-family: Tahoma, sans-serif;">Dieter Spreen (Siegen)</span></li></ul><div class=""><br class=""></div></div></div></div></div></div></div></div></div></div></body></html>