ICM Operator Algebras Satellite Conference - ICMOA

6th Florianópolis-Münster-Ottawa meeting

July 26-30, 2018 in Florianópolis, Santa Catarina, Brazil

This is the 6th conference of a series of mettings that have been organized under cooperation with Florianópolis, Münster and Ottawa.

Here is the history of the first five conferences:
Fields Institute Extended Workshop on Groups and Group Actions in Operator Algebra Theory , University of Ottawa, 12-16 July, 2010.
2011 Brazilian Operator Algebras Symposium (BOAS 2011), Universidade Federal de Santa Catarina, Jurere, Florianópolis, SC, Brazil, January 31 - February 4, 2011.
SFB-Workshop on Groups, Dynamical Systems and C*-Algebras , Münster, August 20-24, 2013.
International Conference on Functional Analysis and Dynamical Systems (FADYS) , Praia dos Ingleses, Florianópolis, February 24-27, 2015.
Workshop on Dynamical Systems and Operator Algebras, May 30 to June 1, 2016, University of Ottawa

This conference is dedicated to the 60th birthday of Prof. Ruy Exel.


Happy Birthday Ruy! - Feliz Aniversário!

Subject of the conference

Operator Algebras originated in the work of von Neumann, in his search for a mathematical framework for quantum mechanics, and of Gelfand and Naimark. They are the noncommutative versions of measure theory, topology and differential geometry and have deep ties with operator theory, ergodic theory, harmonic analysis, representation theory and quantum physics. In recent years the connections with other fields have guaranteed to Operator Algebras a central role in Mathematics, as it is seen from the work of A. Connes in noncommutative geometry and V. Jones in polynomial invariants. One of the many ramifications of these developments is the fruitful interaction with Dynamical Systems. The deep connections between Ergodic Theory and von Neumann algebras, established in the 70's by A. Connes, W. Krieger, J. Feldman, C. Moore and others, has recently found its counterpart in equally deep connections linking Topological Dynamics and C*-algebras. For example, for the class of symbolic dynamical systems there exists a correspondence with the theory of C*-algebras (through the notion of crossed products and their K-theory groups). For Markov shifts, for example, the corresponding C*-algebra is the well known Cuntz-Krieger algebra and its K0-group is the known invariant introduced by Bowen and Franks in 1977. The theory of operator algebras is undoubtedly one of the domains in Mathematics most notable for the depth of its problems, the richness of its new ideas, its connections to so many different fields, and its great potential as a unifying language and source of illumination.

Conference Venue

The workshop will take place in Canasvieiras, in the Hotel Palace Praia, with whom with have negotiated special room prices as follows:

- Single room - R$ 203,00.
- Double room - R$ 246,50.
- Triple room - R$ 323,00.
- Quadruple: R$ 395,00.

Every participant should book his/her own room.
To do it, please send an email to reservas@palacepraia.com.br or marina.castro@palacepraia.com.br, informing that your are a participant of the Satellite ICMOA 2018.


We ask everyone to register. To register please download this text file, fill it out using your favourite text editor, save it as text (please avoid unnecessarily complicated editor formats) and e-mail it as an attachment to icm2018oasatellite@gmail.com. Alternatively you may copy and paste it directly on your mail editor and send it to us as the body of your message. In this case a "plain text" message is preferred over "rich formatting". The registration deadline is July 15, 2018. It is important to provide your date and time of arrival in the registration form. We will try to organize transfers from the airport.

Registration fees

There will be a registration fee of R$ 250 (aproximately 80 USD), payable upon arrival.
Registration fees should be paid in Reals (the local currency), either in cash or Brazilian checks. We are not prepared to deal with credit cards, foreign checks or foreign currency.


Confirmed Speakers:

Alexander Kumjian (Nevada)
Andreas Thom (Dresden)
Artur Lopes (UFRGS)
Astrid and Huef (Otago)
Benjamin Steinberg (New York / CUNY)
Charles Starling (Carleton)
Christian Skau
Dana Williams (Darthmouth)
David Pitts (Lincoln)
Elizabeth Gillaspy (Montana)
Enrique Pardo (Cadiz)
Fernando Abadie (Montivideo)
Gábor Szabó (Aberdeen)
George Elliott (Toronto)
Gilles Gonçalves de Castro (UFSC)
Ian F. Putnam (Victoria)
Ilijas Farah (York)
Jean Renault (Orleans)
Joachim Cuntz (Münster)
Karen Strung (Warsaw)
Kristin Courtney (Virginia)
Lisa Orloff Clark (Wellington)
Marcelo Laca (Victoria)
Maria Ramirez Solano (Copenhagen)
Matthew Kennedy (Waterloo)
Mikael Rordam (Copenhagen)
Marc Rieffel (Berkeley)
Nathan Brownlowe (Sydney)
Paulo Pinto (IT Lisboa)
Pere Ara (Barcelona)
Ralf Meyer (Göttingen)
Sara Arklint (Copenhagen)
Sarah Browne (Penn State)
Sarah Reznikoff (Kansas State)
Siegfried Echterhoff (Münster)
Soren Eilers (Copenhagen)
Thierry Giordano (Ottawa)
Thomas Timmermann (Münster)
Vaughan Jones (Berkeley, Vanderbilt)
Wilhelm Winter (Münster)
Vladimir Pestov (UFSC/Ottawa)
Xin Li (London)
Zhuang Niu (Wyωing)

Poster Session

We plan to organize a poster session in this conference. If you would like to contribute, please follow these instructions:

Instructions for submission of a poster

Additional Information

For more information, please send an email to icm2018oasatellite@gmail.com, or if you prefer, contact one of the

Local Organizers:


Alcides Buss (alcides.buss at ufsc dot br),
Daniel Gonçalves (daniel.goncalves at ufsc dot br),
Gilles Gonçalves de Castro (gilles.castro at ufsc dot br)
Giuliano Boava (g.boava at ufsc dot br)


Viviane Beuter (vivibeuter@gmail.com)

International Organizing Committee:

Thierry Giordano
Siegfried Echterhoff
Nathanial Brown

Scientific Committee:

Alcides Buss
Daniel Gonçalves
George Elliott
Joachim Cuntz
Marcelo Laca
Vaughan Jones


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