Keynote Speakers

Invited Speakers

And there will be contributed talks and a poster session!


Aim of the Conference

A conference on "Groups, Rings and the Yang-Baxter equation" will be held at Domain Sol Cress in the beautiful town of Spa, Belgium. The international conference focusses on recent developments in the areas of ring theory, group theory and the new structure, called braces, that recently has attracted a lot of attention because of its role in a description of set-theoretic solutions of the Yang-Baxter equation. Special emphasis is given on the relations between these areas and in particular on topics where a mixture of methods (involving these theories) has been used. Some topics of particular interest are: group rings, unit groups, (graded) rings and also various algebraic structures used in the context of the Yang-Baxter Equation.

The deadline for the application for a talk was April 18th, 2017. All lecture slots are filled. The schedule can be found below.

The talks will begin early Monday morning, June 19th, and the last talk will be presented late afternoon on Friday, June 23th. Arrival is expected on June 18th and departure on June 24th.

If you have any questions please do not hesitate and write to us: Doryan.Temmerman@gmail.com

  • Now also some of the posters are available in the schedule section.
  • Slides of the talks are available in the online schedule.
  • The information on how to get to the conference venue was updated, see Arrival section.
  • The lecture schedules and all abstracts can be found in the Event schedule section below.
  • A poster is available here.
  • There are rumors of a pool tournament and a ping-pong tournament.
  • Did you know that the English word "spa" derives its name from the town of Spa?
  • Definitions of spa (Noun):
    • A mineral spring considered to have health-giving properties.
    • A place or resort with a mineral spring.
    • A commercial establishment offering health and beauty treatment through such means as steam baths, exercise equipment, and massage.
  • Mehdi Aaghabali (University of Edinburgh, UK)
  • Ali Alabdali (University of Exeter, UK)
  • Litegebe Alamirew (University of Gondar, Ethiopia)
  • Eli Aljadeff (Technion Institute of Technology, Israel)
  • Bana Al Subaiei (King Fisal University, Saudi Arabia)
  • Jafar A'zami (University of Mohaghegh Ardabili, Iran)
  • Andreas Bächle (Vrije Universiteit Brussel, Belgium)
  • Sanghoon Baek (KAIST, Republic of Korea)
  • Yuri Bakhturin (Memorial University of Newfoundland, Canada)
  • Jason Bell (University of Waterloo, Canada)
  • Marco Bonatto (Charles University, Prague, Czech Republic)
  • Nigel Byott (University of Exeter, UK)
  • Mauricio Caicedo (Vrije Universiteit Brussel, Belgium)
  • Marco Castelli (Università del Salento, Italy)
  • Francesco Catino (Università del Salento, Italy)
  • Stefan Catoiu (DePaul University, USA)
  • Ferran Cedó (Autonomous University of Barcelona, Spain)
  • William Chin (DePaul University, USA)
  • Fabienne Chouraqui (University of Haifa, Israel)
  • Ilaria Colazzo (Università del Salento, Italy)
  • Leo Creedon (Institute of Technology Sligo, Ireland)
  • Patrick Dehornoy (University of Caen, France)
  • Matyas Domokos (MTA Alfred Renyi Institute of Mathematics, Hungary)
  • Amir Ehsani (Islamic Azad University, Iran)
  • Florian Eisele (City, University of London, UK)
  • Islam Foniqi (University of Bonn, Germany)
  • Fergal Gallagher (Institute of Technology Sligo, Ireland)
  • Tatiana Gateva-Ivanova (Bulgarian Academy of Science, Bulgaria)
  • Eugenio Giannelli (University of Cambridge, UK)
  • Isabel Goffa (Vrije Universiteit Brussel / Atheneum De Ring Leuven, Belgium)
  • Jairo Gonçalves (University of São Paulo, Brazil)
  • Alexey Gordienko (Vrije Universiteit Brussel, Belgium)
  • Basile Herlemont (Centre de Physique Théorique Marseille, France)
  • Ted Hurley (National University of Ireland Galway, Ireland)
  • Surender Jain (Ohio University)
  • Geoffrey Janssens (Vrije Universiteit Brussel, Belgium)
  • Eric Jespers (Vrije Universiteit Brussel, Belgium)
  • Tibor Juhász (Eszterházy Károly University, Hungary)
  • Yaakov Karasik (Technion Institute of Technology, Israel)
  • Christian Kassel (CNRS and Université de Strasbourg, France)
  • Vladislav Kharchenko (UNAM, Mexico)
  • Evgeny Khukhro (University of Lincoln, UK)
  • Ann Kiefer (University of Bielefeld, Germany)
  • Wolfgang Kimmerle (University of Stuttgart, Germany)
  • Alexander Konovalov (University of St Andrews, UK)
  • Łukasz Kubat (University of Warsaw, Poland)
  • Victoria Lebed (Trinity College Dublin, Ireland)
  • André Leroy (Université d'Artois, France)
  • Viktor Levandovskyy (RWTH Aachen University, Germany)
  • Sugandha Maheshwary (Indian Institute of Science Education and Research Mohali, India)
  • Dmitry Malinin (UWI, Kingston, Jamaica)
  • Gunter Malle (TU Kaiserslautern, Germany)
  • Mohamed Mame (USTM)
  • Leo Margolis (University of Murcia, Spain)
  • Jerzy Matczuk (Warsaw University, Poland)
  • Caroline Mattes (Universität Stuttgart, Germany)
  • Siddiqua Mazhar (Newcastle University, UK)
  • Marzia Mazzotta (Università del Salento, Italy)
  • Arkadiusz Męcel (University of Warsaw, Poland)
  • Szabolcs Mészáros (Central European University, Hungary)
  • Maria Maddalena Miccoli (Università del Salento, Italy)
  • Andrey Mikhovich (Lomonosov Moscow State University, Russia)
  • Paula Murgel Veloso (Universidade Federal Fluminense, Brazil)
  • Kayvan Nejabati Zenouz (University of Exeter, UK)
  • Pace Nielsen (Brygham Young University, USA)
  • Jan Okniński (University of Warsaw, Poland)
  • Don Passman (University of Wisconsin, USA)
  • Agata Pilitowska (Warsaw University of Technology, Poland)
  • Giuseppina Pinto (Università del Salento, Italy)
  • Dmitri Piontkovski (NRU HSE, Russia)
  • Ángel del Río (University of Murcia, Spain)
  • David Riley (The University of Western Ontario, Canada)
  • Ann Rogers (DePaul University, USA)
  • Louis Rowen (Bar-Ilan University, Israel)
  • Wolfgang Rump (University of Stuttgart, Germany)
  • Ofir Schnabel (University of Haifa, Israel)
  • Sudarshan Sehgal (University of Alberta, Canada)
  • Mariano Serrano (University of Murcia, Spain)
  • Salvatore Siciliano (Università del Salento, Italy)
  • Thomas Sicking (University of Göttingen, Germany)
  • Agata Smoktunowicz (University of Edinburgh, UK)
  • Ernesto Spinelli (Sapienza Universita Di Roma, Italy)
  • David Stanovský (Charles University, Prague, Czech Republic)
  • Paola Stefanelli (Università del Salento, Italy)
  • Doryan Temmerman (Vrije Universiteit Brussel, Belgium)
  • François Thilmany (University of California, San Diego, USA)
  • Davide Trotta (University of Trento, Italy)
  • Hamid Usefi (Memorial University of Newfoundland, Canada)
  • Arne Van Antwerpen (Vrije Universiteit Brussel, Belgium)
  • Michel Van den Bergh (FWO, University Hasselt, Belgium)
  • Leandro Vendramin (University of Buenos Aires, Argentina)
  • Magdalena Wiertel (University of Warsaw, Poland)
  • Alexandre Zalesski (University of East Anglia, UK)
  • Anna Zamojska-Dzienio (Warsaw University of Technology, Poland)
  • Efim Zelmanov (University of California at San Diego, USA)
  • Michal Ziembowski (Warsaw University of Technology, Poland)

Organizers

Ferran Cedó (Autonomous University of Barcelona, Spain)
Eric Jespers (Vrije Universiteit Brussel, Belgium)
Jan Okniński (University of Warsaw, Poland)
Michel Van den Bergh (FWO, University Hasselt, Belgium)

Scientific committee

Eli Aljadeff (Technion Institute of Technology, Israel)
Ferran Cedó (Autonomous University of Barcelona, Spain)
Eric Jespers (Vrije Universiteit Brussel, Belgium)
Wolfgang Kimmerle (University of Stuttgart, Germany)
Jan Okniński (University of Warsaw, Poland)
Ángel del Río (University of Murcia, Spain)
Michel Van den Bergh (FWO, University Hasselt, Belgium)

local organizers

Andreas Bächle (Vrije Universiteit Brussel, Belgium)
Mauricio Caicedo (Vrije Universiteit Brussel, Belgium)
Alexey Gordienko (Vrije Universiteit Brussel, Belgium)
Geoffrey Janssens (Vrije Universiteit Brussel, Belgium)
Ann Kiefer (University of Bielefeld, Germany)
Leo Margolis (University of Murcia, Spain)
Doryan Temmerman (Vrije Universiteit Brussel, Belgium)
Arne Van Antwerpen (Vrije Universiteit Brussel, Belgium)


Event schedule

You can download the abstracts of all talks and posters at once in the abstract book below. A talk schedule is included on the last page and is also separately downloadable. There might still be some minor changes.

Abstract book (PDF)
Talk schedule (PDF)

Individual abstracts are available in the online schedule on the right. An updated, printed out version of the abstract book will be provided upon registration.

Multiplicative Jordan Decomposition in Integral Group Rings Abstract Slides
On finite-diminsional G-graded division algebras Abstract
Almost Engel finite, profinite, and compact groups Abstract Slides
Matched products of left braces and simplicity Abstract Slides
Room A:
14:00-14:15: Matyas Domokos
Degree bounds and rationality of Hilbert series in noncommutative invariant theory Abstract Slides
14:20-14:35: Vladislav Kharchenko
Combinatorial rank of quantum groups of infinite series Abstract Slides
14:40-14:55: Ofir Schnabel
Twisted group ring isomorphism problem Abstract Slides
Room B:
14:00-14:15: Yuri Bakhturin
Classification of real graded division algebras Abstract
14:20-14:35: Doryan Temmerman
Bovdi units and free products in integral group rings of finite groups Abstract Slides
Group identities for unitary units of group rings Abstract Slides
Some results on graded nil rings Abstract
Skew braces and the Yang-Baxter equation Abstract Slides
An algorithmic construction of group automorphisms and the Yang-Baxter equation Abstract Slides
A Glimpse into the asymptotics of Polynomial identities Abstract Slides
Posters:
Marco Bonatto
Simply connected quandles Abstract Poster
Fergal Gallagher
Counterexamples to the Isomorphism Problem in Finite Group Algebras Abstract Poster
Basile Herlemont
Differential calculus on h-deformed spaces Abstract
Viktor Levandovskyy
Computer Algebra meets Ring Theory Abstract
Kayvan Nejabati Zenouz
Hopf-Galois structures on Galois filed extension of degree p3 and their relationship to braces Abstract Poster
Agata Pilitowska
Orbit decomposition for medial quandles Abstract
Ann Rogers
The Jacobian and Dixmier Conjectures Abstract
Thomas Sicking
The Dimension Problem for Groups and Lie Rings Abstract
Room A:
14:00-14:15: Florian Eisele
Computing with lattices over group rings of finite groups Abstract Slides
14:20-14:35: Arne Van Antwerpen
Coleman automorphisms of finite groups and their minimal normal subgroups Abstract Slides
14:40-14:55: Sugandha Maheshwary
The cut-groups: Groups with all central units of integral group rings trivial Abstract Slides

Room B:
14:00-14:15 Giuseppina Pinto
Indecomposable solutions whose structure group has not unique product property Abstract Slides
14:20-14:35: Marco Castelli
A new family of irretractable set-theoretic solutions of the Yang-Baxter equation Abstract Slides
14:40-14:55: Dmitri Piontkovski
Algebras of linear growth and the dynamical Mordell-Lang conjecture Abstract Slides
Structure groups of YBE solutions: new properties, and cohomological applications Abstract Slides
A general algebraic structure theory for tropical mathematics Abstract Slides
Characters of odd degree Abstract
Room A:
10:00-10:15: Tibor Juhász
Strong Lie derived length of group algebras vs. derived length of their group of units Abstract Slides

Room B:
10:00-10:15: Szabolcs Mészáros
Quantized coordinate rings and universal bialgebras Abstract Slides
Room A:
10:50-11:05: Jairo Gonçalves
Free symmetric and unitary pairs in the field of fractions of free nilpotent group algebras Abstract
11:10-11:25: Paula Murgel Veloso
Cleanliness and group rings Abstract Slides
11:30-11:45: Alexander Konovalov
GAP group rings toolkit Abstract Slides

Room B:
10:50-11:05: Arkadiusz Męcel
Growth alternative for Hecke-Kiselman monoid algebras Abstract Slides
11:10-11:25: David Stanovský
Quandles and transitive groups, quandles and universal algebra Abstract Slides
11:30-11:45: Anna Zamojska-Dzienio
Affine and quasi-affine quandles Abstract Slides
We go on a trip to Liege. The program includes a city tour, a beer tasting and free time.
On some connections between set-theoretic solutions of the Yang Baxter equation, matrices and noncommutative rings Abstract
On lower bounds for the degrees of projective modules for finite simple groups Abstract
The p'-subgraph of the Young graph Abstract
On a result of Cliff and Weiss about a strategy to attack the Zassenhaus Conjecture Abstract
Room A:
14:00-14:15: Leo Creedon
Construction of Binary Codes using Dihedral Group Algebras Abstract
14:20-14:35: Ted Hurley
Group rings for communications Abstract
14:40-14:55: Mariano Serrano
On the Zassenhaus conjecture for direct products Abstract

Room B:
14:00-14:15: Christian Kassel
From subgroups to ideals: a way to produce q-analogues Abstract
14:20-14:35: Paola Stefanelli
The algebraic structure of semi-brace Abstract
14:40-14:55: Ilaria Colazzo
Semi-braces and the Yang-Baxter equation Abstract
Application of the graded Posner theorem Abstract
Garside germs for the structure groups of the Yang-Baxter equation Abstract
Conference dinner in the restaurant of Sol Cress.
Solvable groups and affine structures Abstract
Braces over a field and regular subgroups of the affine group Abstract
Braces, Symmetric groups and the Yang-Baxter equation Abstract
Hopf-Galois structures on Galois extensions of fields Abstract
Room A:
14:00-14:15: Stefan Catoiu
The classification of generalized Riemann derivatives Abstract
14:20-14:35: William Chin
The Algebra of Generalized Derivatives Abstract
14:40-14:55: Dmitry Malinin
On the arithmetic of integral representations Abstract

Room B:
14:00-14:15: Kayvan Nejabati Zenouz
Hopf-Galois structures on Galois filed extension of degree p3 and their relationship to braces Abstract
14:20-14:35: Ali Alabdali
Counting Hopf-Galois Structures on Cyclic Field Extensions of Squarefree Degree Abstract
14:40-14:55: Łukasz Kubat
Irreducible representations of the plactic monoid of rank four Abstract
Group algebras satisfying a Laurent Polynomial Identity Abstract
Matrix Wreath Products Abstract
Winner 1st Semifinal vs. Winner 2nd Semifinal

Accommodation

There is a limited number of rooms available in the conference center and these can be booked on a first come first served basis. Please register for the conference first. Afterwards you will receive contact details and instructions on how to book a room at the conference venue. The rates for full board are 88.50 Euro (double room for single use), 77.50 Euro (double room) and 66.67 Euro (double room for triple use with extendable sofa) per person per day. It is important that the reservation for the accommodation is made via the e-mail address provided in the e-mail confirming your registration and not via booking.com or other websites.

Here are some links with interesting sites in Spa and its surroundings.

Here are some links with information about Belgium.



Arrival

There is a railway station in the town of Spa. From the railway station "Spa" it is a (maximum) 10 minutes walk to the cable car which takes you to the thermal bath right next to the conference venue. There are hourly direct trains to Spa from the cities Pepinster, Verviers and Aachen (Germany). Note that the last connection in direction Spa leaves Brussels already around 20:00, see the boxes on the right for detailed information.
Taxi Jean-Yves in Spa can be reached at +32 495 772020.

To walk to the cable car from the railway station, just take Rue de la gare, at its end turn right into Avenue Reine Astrid. After a 250m walk there is the tourist information on the left behind which the lower terminus of the cable car is located.
A map was included in the third announcement and can also be obtained upon request.

On Sunday there is a connection each hour from Brussels Airport-Zaventem to Spa with two changes (in Leuven and at Verviers-Central), with a total duration of the journey being 2 hours. The last connection to Spa departs from the Airport at 20:10 on Saturday and Sunday and at 18:41 during weekdays. Later there are still connections to Verviers-Central, from where a taxi can take you to Spa for about 50 Euros (the taxi company "centraltax" in Verviers can be reached via +32 87 333333 or +32 475 661387). For detailed information on train connections you can consult the webpage of the SNCB=NMBS.
There are ticket counters and ticket machines at the station to buy tickets. Note however that it is not possible to obtain information on train connections from the ticket machines, so it might be helpful to have information on where to change the train already saved or printed out (this information is available from the above website of the Belgian railway company).

Brussels Midi is the terminal for Eurostar trains and Thalys trains:
There is a connection each hour from Bruxelles-Midi to Spa with one change at Verviers-Central, the last one departing from Bruxelles-Midi at 19:56 on Saturdays and Sundays and one hour earlier during weekdays. Later there are still connections to Verviers-Central, from where a taxi can take you to Spa for about 50 Euros (the taxi company "centraltax" in Verviers can be reached via +32 87 333333 or +32 475 661387). For detailed information on train connections you can consult webpage of the SNCB=NMBS.
There are ticket counters and ticket machines at the station to buy tickets. Note however that it is not possible to obtain information on train connections from the ticket machines, so it might be helpful to have information on where to change the train already saved or printed out (this information is available from the above website of the Belgian railway company).

There are six connections per day taking you in about 3h30 from Frankfurt Airport (departure at 8:31, 10:31, 12:43, 14:43, 16:43, 18:43) to Spa with only one change in Aachen and some others with more changes. See the website of Deutsche Bahn for more information.
There are ticket counters and ticket machines at the station to buy tickets.

Event Location

Domain Sol Cress

Spaloumont 5
4900 Spa
Belgium
Get directions

Acknowledgement

The conference is being partially sponsored by FWO and Onderzoeksraad VUB.