NonCommutative rings


their Applications, VI

LENS 24-27 June 2019

  1. General overview
  2. Scientific committee
  3. Participants
  4. Program
  5. Talks
  6. Abstracts
  7. Proceedings
  8. How to register
  9. Pictures
  10. Social and cultural events
  11. Arriving in Lens
  12. The faculty Jean Perrin
  13. Hotels and accomodations
  14. Meals
  15. Other meetings in Spa (Belgium) and Lens (France)
  16. Contacts
  17. Sponsors

General overview

a) The conference will take place at the Science Faculty of the University of Artois from 24th till 27th of June 2019.

b) As for the previous editions of this conference, the aim is to gather specialists in ring theory and in areas where this theory is used (for example in representation theory, coding theory, cryptography).
I am very happy to announce that Professor Cary Huffman from Loyola University in Chicago ( Info ) will give the course this year (8 hours). We will also have four main speakers:

  • Walter Ferrer , Universidad de la republica Montevideo (Uruguay)
  • Agata Smoktunowicz, University of Edinburgh (UK) ( Info).
  • Pedro A. Guil, University of Murcia (Spain) ( Info ).
  • Michal Ziembowski, Warsaw University of Technology (Pologne) (Info).
    The course and the plenary talks will take place in the mornings (Room S25).
    In the afternoons the participants will have the possibility to present their works during short talks (20-25 minutes each, room S.25).

    With the kind permission of Prof. Cary Huffman here is the content of his First lecture
    Second lecture.
    third lecture.
    fourth lecture.

    Scientific committee

    1. Walter Ferrer, Universidad de la República de Uruguay, Montevideo (Uruguay)
    2. Steven Dougherty, Scranton University (Pennsylvania, USA)
    3. Pedro A. Guil, University of Murcia (Spain)
    4. S.K. Jain, Ohio University, Athens (USA)
    5. Cary Huffman, Loyola University (Chicago, USA)
    6. Frédérique Oggier, Nanyang Technological University (Singapore)
    7. Michal Ziembowski, Warsaw university, (Poland)
    8. Agata Smoktunowicz, University of Edinburgh (UK)
    The committee will select the talks and the papers submitted to the proceedings.
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    List of participants

      1. Yusuf Alagoz, Izmir Institute of Technology (Turkey).
      2. Lulwah Al-Essa, Imam Abdulrahman bin Faisal University (Saudi Arabia).
      3. Turki Alsuraiheed, University of Sheffield (UK).
      4. Dilshad Alghazzawi, University of Jeddah (Saudi Arabia).
      5. Kholood Alnefaie, The university of Sheffield (U.K.)
      6. Noah Abdelghany Western University, Michigan (USA).
      7. Per Back, Mälardalen University, (Sweden)
      8. Grzegorz Bajor, Warsaw University of technology, Warsaw (Poland).
      9. Vladimir Bavula, University of Sheffield (UK).
      10. Martino Borello, Université Paris 8 (France)
      11. M'Hhammed Boulagouaz, King Khalid University (Arabie Saoudite).
      12. Ahmed Bouzidi, Université USTHB, Alger (Algérie).
      13. Anna Cichocka, Warsaw University of Technology (Poland).
      14. Bui Xuan Hai, VNUHCM-University of Science (Vietnam)
      15. Michela Ceria, Universita degli studi di milano (Italy)
      16. Ahmed Cherchem, Université USTHB, Alger (Algérie).
      17. Manuel Cortès-Izurdiaga, University of Almeria (Spain).
      18. Leo Creedon, I.T. Sligo (Ireland).
      19. Abdulaziz Deajim, King Khalid University (Saudi Arabia).
      20. Steven Dougherty, Scranton University (USA).
      21. Ylmaz Durgun Çukurova University (Turkey).
      22. Mahdieh Ebrahimpour, Vali-E-Asr University of Rafsanjan (Iran).
      23. Susan El Deken, Helwan University, Faculty of Science,Cairo (Egypt).
      24. Lhoussain Elfaldil, Faculté des sciences Dhar-Mahraz, Fes (Morocco).
      25. Walter Ferrer Santos, University de la republica, Montevideo (Uruguay).
      26. Fergal Gallagher, I.T. Sligo, (Ireland).
      27. Yuval Ginosar, University of Haifa (Israel).
      28. Piotr Grzezszczuk, Bialystok University of Technology, Bialystok (Poland).
      29. Pedro A. Guil, University of Murcia (Spain).
      30. Malgorzata Hryniewicka, University of Bialystok (Poland).
      31. Emil Ili\'{c}-Georgijevi\'{c}, University of Sarajevo, Sarajevo (Bosnia and Herzegovina).
      32. Hughes Kieran, I.T. Sligo (Ireland).
      33. Tamer Kosan, Gazi university, Ankara (Turkey).
      34. André Leroy, Université d'Artois (France).
      35. Jerzy Matczuk, University of Warsaw (Poland).
      36. Teo Mora, University of Genoa (Italy)
      37. Arkadiusz Mecel, University of Warsaw (Poland)
      38. Buket Ozkaya, Nanyang Technological University (Singapore)
      39. Cesar Polcino Milies, Sao Paulo University (Brazil).
      40. Adam Owen, University of Nottingham, (UK)
      41. Dmitri Piontovski, National Research University Higher School of Economics, Moscow (Russia)
      42. Karol Pryszczepko, University of Bialystok (Poland).
      43. José Patricio Sánchez Hernández, Department of Algebra of University of Granada (Spain)
      44. Patrick Solé, CNRS Aix-Marseille et centrale Maseille (France)
      45. Agata Smoktunowicz, Edinburgh University (UK)
      46. Steve Szabo, Eastern Kentucky University (USA).
      47. Daniel Thompson, University of Nottingham (UK).
      48. Sarra Talbi, U.S.T.H.B., Alger (Algérie).
      49. Felix Ulmer, Université de Renness(France)
      50. Uzi Vishne, Bar Ilan University (Israel).
      51. Jan Zemlicka, Charles University, Prague (Czech).
      52. Michal Ziembowski, Warsaw University of technology (Poland).

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    Here is the program .


    1. Yusuf Alagoz, Max-projectivity of some classes of modules.
    2. Kholood Alnefaie, The global dimension of the generalized Weyl algebras $S^{-1} K[H,C][X,Y; \sigma, a]$.
    3. Noha Abdelghany, Monoid-Ring Tools for Linear Codes over Ring and Module Alphabets.
    4. Grzegorz Bajor, On maximal commutative subalgebras of Leavitt path algebra.
    5. Per Bäck, Non-associative deformations of Ore extensions.
    6. Vladimir Bavula, The global dimension of the algebras of polynomial integro-differential operators and the Jacobian algebras
    7. Martino Borello, On checkable codes and their asymptotic performance.
    8. Mhammed Boulagouaz, On principal (f,sigma, delta)-codes over rings.
    9. Michela Ceria, Why you should not even think to use Ore algebras in Cryptography.
    10. Manuel Cortès-Izurdiaga, Homological algebra relative to a Tor-pair.
    11. Leo Creedon, Boolean Valued Functions on Groups.
    12. Steven Dougherty, G-codes over rings.
    13. Yilmaz Durgun, On subinjectivity domains of pure-injective modules.
    14. Susan El-Deken, Extensions of Homogeneous Semilocal Rings.
    15. Lhoussain Elfadil, factorization of polynomials over valued fields based on graded polynomials
    16. Walter Ferrer, The Heisenberg product: from Hopf algebras to symmetric functions.
    17. Yuval Ginosar, Crossed Products and Coding Theory.
    18. Piotr Grzeszczuk, Classical radicals of invariants of skew derivations.
    19. Pedro Guil, Partial morphisms in exact categories.
    20. Bui Xuan Hai,Solvable maximal subgroups in subnormal subgroups of ${\rm GL}_n(D)$.
    21. Malgorzata Hryniewicka, On some generalizations of the reversibility in nonunital rings
    22. Cary Huffman, Error-correcting Codes over Rings.
    23. Emil Ili\'{c}-Georgijevi\'{c}, On the Jacobson radicals of graded rings.
    24. Kieran Hughes, Derivations of group algebras as Lie Algebras.
    25. Arkadiusz Mecel, On Hecke-Kiselman algebras.
    26. Teo Mora, Buchberger (and Janet) Theory for Effective Rings.
    27. Adam Owen, Nonassociative algebras from skew polynomial rings.
    28. Buket Ozkaya, On Some Algebraic Multidimensional Codes.
    29. Dmitri Piontovski, Algebras and formal languages.
    30. Cesar Polcino Milies, Essential idempotents in group algebras and coding theory.
    31. Karol Pryszczepko, On a certain commutativity theorem for rings and its applications.
    32. José Patricio Sánchez Hernández, Peterson-Gorenstein-Zierler algorithm for a differential convolutional codes.
    33. Patrick Solé, On additive cyclic codes.
    34. Agata Smoktunowicz, On some applications of noncommutative rings.
    35. Steve Szabo, Minimal rings related to 2-primal rings.
    36. Turki Alsuraiheed, Characterization of multiplication commutative rings with finitely many minimal prime ideals.
    37. Jan Zemlicka, On structure of group modules.
    38. Michal Ziembowki, On some problems related to annihilators of rings.


      Thanks for using the Template .


      There will be a proceedings for the NCRA, VI conference. The final approval is not yet reach...In fact, it is not yet clear if the proceedings will be published by Springer or by the AMS (contemp. math. series). The papers submitted will be refereed in a classical way. The scientific committee will serve as an editorial board. Consider seriously to submit a paper!
      Deadline for submitting an article : 15 december 2019. Please do consider to submit an article.

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      How to register

      Just send me an email with the following information:
      First name:
      Last name:
      Arrival date:
      Departure date:
      Title of the talk:
      Participation at the banquet (about 20 Euros): Yes/No
      Special request (hotel room, meals,...):
      Here is my address: André Leroy


    Here are some pictures of the conference... Some Pictures
    Thanks to Arkadiusz Mecel for these ones

    Social and cultural event

    A banquet will be organized (around 20 Euros)... More about this subject later.
    The famous museum "Le Louvre" has "a branch" in Lens since December 2012. They organise regular exhibitions and this is for sure an easy target. Another possibility is to visit Arras or Lille... Here are some link for "Le Louvre Lens" Louvre II or also the following one.
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    Arriving in Lens

    BY PLANE There are 4 different airports not too far from Lens;

  • Lesquin (International Air Transport Association: LIL). This the airport of Lille (the biggest city in north of France) It is the closest (35 km from Lens). If you arrive via this airport you will have to take a bus to the Lille railway station (Lille Flandres) and then take a train to Lens. Notice that as far as I know there are no connection by plane between Charles de Gaulle airport and Lesquin so even if your ticket plane says that you have a stop in CDG and then go to Lesquin it is highly probable that this last part of your journey (from CDG to Lesquin) will be by train!
    Lesquin (Lille) airport

  • Charles de Gaulle at Roissy (IATA code: PAR; ICAO code: CDG). This is the most likely airport of arrival if you are coming from abroad. There is a train station and you can connect directly to Lens or go to Lille and in Lille take a train to Lens (this is sometimes faster since there are not too many direct train from CDG to Lens).
    CDG airport
    Connection between CDG airport and Lens Train from CDG airport

  • Beauvais (IATA code BVA) This airport is very close to the city of Beauvais (Tillé). You could arrive to this airport specially if you use low fare airlines. There is frequent bus shuttle to the center of Beauvais and from there you can take a train to Lens via Paris nord 'and possibly with a stop in Arras)
    Beauvais airport
    train connections from Beauvais

  • Charleroi (IATA code CRL) This airport is in Belgium (also called Brussels south airport). This airport is not too far from Lens but you will have to take a shuttle to Brussels or to Charleroi and then take a train to Lens (probably via Lille). There are quite a few low cost companies using this airport.
    Charleroi Airport
    NOTE !!: if you want to arrive via this airport and need a visa, be sure you are OK. I think you need a visa from the country you are entering Europe so in this case this would mean Belgium....

    BY CAR From Paris take the A1 in direction of Lille and in Hennin Beaumont take the A 21. Leave this highway at Lens centre. The building of the "faculté Jean Perrin" is very close to the Bollaert stadium. This building is known as the "batiments des mines".

    BY TRAIN You can get information on the connections at the following URL connections

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    The faculty Jean Perrin

    The talks will take place in the Bulding B Aula S 25 of the "Faculté Jean Perrin". This Faculty is part of the university of Artois. The address is "23 Rue Jean Souvraz, Lens, France". It is located in a very nice and impressive building that served as offices for the coal mines till the 60's. It is still known as "le bureau des mines" by the local population. It is about 15 minutes walk from the train station and is quite close to the "Stade Bollaert" (a footbal (i.e. soccer) stadion). In front of the faculty building there is a nice park where you can have a walk and relax or just think and solve your math. problems!
    Here is a picture: map of Lens
    The picture of the faculty is on my web page.

    Hotels and accomodations

    A) Hotels I can reserve a room for you but of course you can do this directly as well (if you want me to do so, please mention it while registering since I'll try to get some discount for the participants.).
    1) The closest hotel is the "Hotel Bollaert". Here is a link for the hotel Bollaert
    2) The hotel "Campanile Lens" is not too far (about 30 minuts walk). If you have a car... Here is a link for the hotel Campanile
    3) The hotel "Le Paris Brest-Brest" is located nearly in front of the train station. This means at about 15 minuts walk from the faculty. For more information on this hotel click here
    4) Just in front of the station: Hotel de France, 2 Place du Général de Gaulle.


    The breakfasts and the lunches will be offered to all the participants during the congress.

    Two other algebra meetings in summer 2019

    (1) Groups, rings and Associated Structures 2019, JUNE 9-15, 2019 SPA, Belgium Here is a Link
    (2) Quadratic Forms and Axial Algebras, Lens 17-21 June 2019. Here is a link for this meeting
    (3) Number Theory Days in Lille, Lille 8-11 July 2019. Here is a Link


    Address of organizer of NCRA,V :
    André Leroy
    Home page ou ICI


    1. LML (laboratoire de mathématiques de Lens).
    2. BQR
    3. GDR TLAG.
    4. Campus-France