NonCommutative Rings


their Applications, VII

NCRA, VII, 5-7th July 2021

Online Conference dedicated to Tariq Rizvi

We are very enthusiastic and happy to dedicate the conference to Professor Tariq Rizvi, an extroardinary creative, productive and generous mathematician.
Syed Tariq Rizvi is a Professor of Mathematics at the Department of Mathematics, of the Lima campus of The Ohio State University, where he also has served as course coordinator for many years. Tariq does research in Algebra- more specifically on the theory of rings and modules. His current research interests include Baer rings and modules and the study of module hulls related to these properties. His doctoral advisor at McMaster University (Canada) was Bruno Mueller. In his dissertation completed in 1981, he introduced the the notion of continuity to the study of modules over arbitrary rings. The dissertation was quite influential, and those topics became the center of a lot of activity; in fact, the notions and their generalizations remain the focus of much work to this day.
Tariq's career path took him to the University of Waterloo (Canada), and to University of Ryad (KSA) before joining OSU in 1982. Tariq has been a recipient of the Outstanding Scholar Award from OSU and a Fulbright Fellow Award from the Fulbright Board in Washington, DC. Tariq is world-renowned for his research contributions. He has numerous research papers to his credit published in several international journals of high repute, published the Birkhäuser monograph Extensions of Rings and Modules (with Birkenmeier and Park) and coedited multiple research volumes with other reputed publishers. Tariq also serves on editorial boards of ten international journals, including two as a managing or executive editor. Tariq has given over 120 invited talks at several national and international conferences, many as a plenary speaker. He has regularly organized sessions at several conferences including special sessions in rings and modules at American Mathematical Society conferences and the for the Ohio State-Denison Math Conference series.
Tariq has been an exemplary doctoral advisor to his students Cosmin Roman and Gangyong Lee as well as a wonderful mentor to postdocs Najmeh Dehghani and Fatma Ebrahim. Everyone who deals with Tariq or attends the Denison conference is treated as a friend and a family member. The ring and module community is fortunate to have Tariq in our midst; he is a beacon of generosity, friendliness, and enthusiasm.

  1. General overview, special features
  2. Scientific committee
  3. Participants
  4. Program
  5. Talks
  6. Abstracts
  7. Proceedings
  8. How to register
  9. Pictures
  10. Other online meetings
  11. Contacts
  12. Sponsors

General overview, special features

a) The conference will be completely online from 5th till 7th of July 2021.
This year the conference is in fact divided in two parts. The first part is the NCRA, the second part consists of a one day meeting " quadratic forms, rings and codes" (on the 8th July). The details about this meeting are available at this address . The idea was to encourage transversal cooperation between different branches of Algebra. We really encourage you to attend this meeting as well.
b) As for the previous editions of this conference, the aim is to gather (virtually, this time) specialists in ring theory a nd in areas where this theory is used (for example in representation theory, coding theory, cryptography).
I am very happy to announce that Professor Cristina Fernandez, Autonomous University of Barcelona (UAB) Department of Information and Communication Engineering. ( Information ) will give the course this year (6 hours).

c) The course by Cristina Fernandez will be given from 2.30 pm-4.30pm (European time) with a break of 20 minutes.
Besides the course, two sessions will be organized for participants who want to present their recent results during short 20 minutes talks. One session will be from 9.00 a.m. to 11.30 a.m. (European time) and the other one will take place from 5.30 p.m. to 8.p.m. We will encourage exchanges between the participants by opening thematic rooms. The course and all the talks will be recorded and available online When you will register to give a talk you will be asked in which session you want to talk. Even if you don't intend to give a talk, we would apreciate you to register,...So that we can send you a link.

Scientific committee

  1. Steven Dougherty, Scranton University (Pennsylvania, USA)
  2. Alberto Facchini, University of Padova (Italy).
  3. Cary Huffman, Loyola University (Chicago, USA)
  4. S.K. Jain, Ohio University, Athens (USA)
  5. Ahmed Laghribi, Université d'Artois.(France)
  6. Sergio Lopez-Permouth, Ohio University, Athens (USA)
  7. Frédérique Oggier, Nanyang Technological University (Singapore)
  8. Tariq Rizvi, Ohio Sate University, Columbus (USA)
  9. Jay Wood, Western Michigan University (USA)
The committee will select the talks and the papers submitted to the proceedings.
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List of participants

  1. Noha Abdelghany, Colby College (USA).
  2. Mona Abdi, Shahrood University of Technology (Iran).
  3. Sami Alabiad, King Saud University, Riyadh (Saudi Arabia).
  4. Yusuf Alagoz, Siirt University (Turkey).
  5. Dilshad Alghazzawi, Jeddah University, KAU (Saudi Arabia).
  6. Shakir Ali, Aligarh Muslim University, Aligarh (India).
  7. Abeer Ali Rajaallah Alharbi, King Abdulaziz University Branch Rabigh (Saudi Arabia).
  8. Anani Alkathiry, Umm Al-Qura University (Saudi Arabia).
  9. Yousef Alkhamees, King Saud University (Saudi Arabia).
  10. Meltem ALTUN, Hacettepe University, Ankara (Turkey).
  11. Mohammad Ashraf, Alighar Muslim University (India).
  12. Pinar Aydogdu, Hacettepe University, Ankara (Turkey).
  13. Per Bäck, Mälardalen University, (Sweden).
  14. Ayman Badawi, American University of Sharjah , Sharjah (UAE).
  15. Mhammed Boulagouaz Universite Sidi Mohammed ben Abdellah Fes (Morocco)
  16. Ranya Djihad Boulanouar, Algiers University USTHB, Alger (Algeria).
  17. Ahmed Djamel Bouzidi, Algiers University USTHB, Alger (Algeria).
  18. Dipak Kumar Bhunia, Autonomous University of Barcelona (Spain).
  19. Gary Birkenmeier, University of Louisiana at Lafayette (USA).
  20. Sinem Benli, Izmir Institute of Technology (Turkey).
  21. Delphine Boucher, IRMAR, Université de Rennes 1 (France).
  22. Engin Büyükasik Izmir Institute of Technology (Turkey)
  23. Victor Camillo, University of Iowa (USA).
  24. Ahmed Cherchem, Algiers University USTHB, Alger (Algeria).
  25. Manuel Cortés-Izurdiaga, University of Málaga (Spain).
  26. Soumitra Das, KPR Institute of Engineering and Technology, Coimbatore (India).
  27. Avanish Kumar Chaturvedi, University of Allahabad, Prayagraj (India).
  28. Wagner Cortes, Institute of Mathematics-UFRGS, Porto Alegre (Brazil).
  29. Najmeh Dehghani, Persian Gulf University, Bushehr, (Iran).
  30. Hai Dinh, Kent State University (USA).
  31. Steven T. Dougherty, University of Scranton (USA).
  32. Müge Diril, Izmir Institute of Technology (Turkey).
  33. Nguyen Viet Dung, Ohio University (USA).
  34. Susan El-Deken,Helwan University (Egypt).
  35. Fatma Ebrahim, Al-Azhar University, Cairo, (Egypt).
  36. Lulwah M. Al-Essa, Imam Abdulrahman Bin Faisal University, (Saudi Arabia)
  37. Gabriella d'Este, University of Milano (Italy).
  38. Sergio Estrada Universidad de Murcia (Spain).
  39. Alberto Facchini, Università di Padova (Italy).
  40. Walter Ferrer, Universidad de la República, (Uruguay).
  41. Cristina Fernandez-Cordoba, Autonomous University of Barcelona (Spain).
  42. Surender Jain, Ohio University, Athens (USA).
  43. Àngel García Blàzquez, University of Murcia (Spain).
  44. Diego García Lucas, Affiliation: Universidad de Murcia (Spain).
  45. Deniz Gokalp, Istanbul University (Turkey).
  46. Franco Guerriero, Ohio University (USA).
  47. Pedro Antonio Guil Asensio, University of Murcia (Spain).
  48. Ashok Ji Gupta, Indian Institue of technology(BHU), Varanasi (India).
  49. Fatmanur Gürsoy, Yildiz Technical University (Turkey).
  50. Erik Hieta-aho, Aalto University (Finland).
  51. Malgorzata Hryniewicka, Bialystok University (Poland).
  52. Berke Kalebogaz, Hacettepe University(Turkey)
  53. Yeliz Kara, Bursa Uluda University (Turkey).
  54. Fatma, Kaynarca, Afyon Kocatepe University, Afyonkarahisar (Turkey).
  55. Tamer Kosan, Gazi University (Turkey).
  56. Jan Krempa, Institute of Mathematics, Warsaw University (Poland).
  57. Arda Kor, Gebze Technical University (Turkey).
  58. Adrian Korban, University of Chester, (England).
  59. Ahmed Laghribi, Université d'Artois (France).
  60. Ganygong Lee, Chungnam National University (South Korea).
  61. André Leroy, Université d'Artois (France).
  62. Yuanlin Li, Brock University (Canada).
  63. Sergio Lopez Permouth, Ohio University, Athens (USA).
  64. Najib Mahdou, University S.M. Ben Abdellah, FEZ (Morocco)
  65. Omar Al-mallah Al-Balqa Applied University, Al-Salt (Jordan)
  66. Umberto Martines Penas, University of Toronto (Canada).
  67. Xavier Mary, Université Paris Nanterre (France).
  68. Jerzy Matczuk, Institute of Mathematics, Warsaw University (Poland).
  69. Sanjeev Kumar Maurya, University of Allahabad (India).
  70. Melaibari, University of Jeddah (Saudi Arabia).
  71. M.Kamal Mkhallalati, University of Istanbul (Tukey).
  72. Intan Muchtadi-Alamsyah, Institut Teknologi Bandung (Idonesia).
  73. Ghulam Muhiuddin, University of Tabuk, (Saudi Arabia)
  74. Diksha Mukhija, Université d'Artois (France).
  75. Najat Muthana, University of Jeddah (Saudi Arabia)
  76. Figen TAKIL MUTLU, Eskisehir Technical University, Tepebasi (Turkey).
  77. Mehrdad Nasernejad, Institute for research in Fundamental sciences(IPM) (Iran).
  78. Zahra Nazemian, University of Graz (Austria).
  79. Pace P. Nielsen, Brigham Young University (USA).
  80. Marta Nowakowska, University of Silesia in Katowice (Poland)
  81. Ayse Cigdem Ozcan, Hacettepe University, Ankara (Turkey).
  82. Nil Orhan Ertas, Bursa Technical University, Bursa (Turkey).
  83. Salahattin Özdemir, Dokuz Eylül University, (Turkey).
  84. Jae Keol Park, Busan National University (South Korea).
  85. Cesar Polcino Milies, University of Sao Paulo (Brazil).
  86. Asiyeh Rafieipour, Ohio University (USA).
  87. Abeer Ali Rajaallah Alharbi, King Abdulaziz University Branch Rabigh (Saudi Arabia).
  88. Cosmin Roman, Ohio State University (USA).
  89. Louis Rowen, Bar-Ilan University (Israel).
  90. Ángel del Río, Universidad de Murcia (Spain).
  91. Tariq Rizvi, Ohio Sate University at Lima (USA).
  92. Cosmin Roman The Ohio State University at Lima (USA).
  93. Serap Sahinkaya, Tarsus University (Turkey).
  94. Martha Lizbeth Sandoval Miranda, Universidad Autónoma Metropolitana, Mexico City (Mexico).
  95. Bülent Saraç, Hacettepe University (Turkey).
  96. Surjeet Singh, Chandigarh University (India).
  97. Virgilio P. Sison, University of the Philippines Los Baños (Philippines).
  98. Daniel Smertnig, University of Graz (Austria).
  99. Agata Smoktunowicz, University of Edinburgh (U.K.)
  100. Anuradha Sharma, IIIT-Delhi, New Delhi (India).
  101. Patrick Solé, CNRS I2M Marseille (France).
  102. Amin Soofiani, University of British Columbia (Canada).
  103. Ashish K. Srivastava, Saint Louis University (USA).
  104. Steve Szabo, Eastern Kentucky University (USA).
  105. Sandeep Sharma, IIIT-Delhi, New Delhi (India).
  106. Zubeyir Turkoglu, Dokuz Eyul University, Izmir (Turkey°
  107. Sarra Talbi, U.S.T.H.B., Algiers(Algeria).
  108. Melis Tekin Akcin,Hacettepe University (Turkey).
  109. Sultan Eylem Toksoy, Hacettepe University (Turkey).
  110. Yaser Tolooei, Razi University (Iran).
  111. Blas Torrecillas Universidad de Almería (Spain).
  112. Derya Keskin Tutuncu, Hacettepe University (Turkey).
  113. Gülsen Ulucak Gebze Technical University (Turkey).
  114. Vaishali Varshney, department of Mathematics, AMU.
  115. Maximiliano Vides, Universidad Nacional delLitoral (Argentina).
  116. Daniel Windisch, Graz University of Technology (Austria).
  117. Jay Wood, University West Michigan (USA).
  118. Monika Yadav, IIIT-Delhi, New Delhi (India).
  119. Tulay Yildirim, Karabuk University (Turkey).
  120. Eda Yildiz Yildiz Technical University, Istanbul, (Turkey).
  121. Mohamed F. Yousif, The Ohio State University (USA).
  122. Yiqiang Zhou, Memorial University of Newfoundland (Canada).

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Here is the program


Abstract of the course given by Cristina Fernandez The abstract, , Slides for the first two sessions
Here are the videos of Cristina Fernandez's course:
Here are the available videos of the talks:
Monday: Alabiad, Muchtadi, Sharma
Monday Alkhamees, Guil
Monday Ceremony in Honour of Prof. Tariq Rizvi and talks by Rizvi, yousif, Azmy
Monday Sole, Abdelghany, Wood
Tuesdayday Boulanouar,Boucher, Talbi
Tuesdayday Rowen, Smertnig, Facchini, Cortes, Lopez, Sandowal
Wednesady Diksha, Garcia, Mary, Estrada
Wednesady Cortes, Hryniewicka, Badawi, LI, Szabo, Srivastava

  1. Noah Abdelghani, Failure of the Macwilliams identities for the Lee weight enumerator over Z_m with m \geq 5, PDF
  2. Sami Alabiad, Constacyclic Codes over Z_p + uZ_p +...+u^{k-1}Z_p, PDF
  3. Yousef Alkhamees, Classification of chain rings, PDF
  4. Shakir Ali, Characterizations of Jordan *-derivations and related maps in rings PDF
  5. Mohammad Ashraf, Characterizations of Lie-type derivations on rings and algebras, PDF
  6. Ayman Badawi, Von Neumann Regular and Related Elements in Commutative Rings, PDF Slides
  7. Per Bäck, On the hom-associative Weyl algebras, Abstract , Slides
  8. D. Boucher, About skew Reed Solomon codes, Abstract, Slides
  9. Najmeh Dehghani, When mutually epimorphic modules are isomorphic, PDF
  10. Hai Dinh, A class of skew cyclic codes and applications in constructing quantum codes, PDF
  11. Steven Dougherty, Additive Codes over Rings Abstract Slides
  12. Ranya Djihad Boulanouar, The skew reversible codes over finite fields, Abstract , Slides
  13. Avanish Kumar Chaturvedi, On some variants of chains conditions, PDF
  14. M. Cortes-Izurdiaga, Endomorphism rings via minimal morphisms, PDF Slides
  15. Wagner Cortes, Simplicity of crossed products by twisted partial actions Abstract
  16. Fatma Ebrahim, When are Baer modules extending? PDF
  17. Gabriella d'Este, Endomorphism rings and Baer-Kaplansky classes, Abstract, Slides
  18. Sergio Estrada, Gorenstein weak global dimension is symmetric PDF .
  19. Alberto Facchini, Spectra of Algebraic structures, Abstract, Slides
  20. Àngel García Blàzquez, The Isomorphism Problem for Rational Group Algebras of Metacyclic Groups, Abstract, Slides
  21. D. Garcia, A classification of two-generated cyclic-by-abelian finite p-groups Abstract,
  22. Pedro Guil Asensio, Descending chains of coprime pairs PDF
  23. Ashok Ji Gupta, On Finite-direct-injective modules PDF
  24. Malgorzata Hryniewicka, Trusses Abstract, Slides
  25. A. Korban, Matrix Constructions derived from Group Rings and Group Matrix Rings
    with Applications to Algebraic Coding Theory (Self-Dual Codes, DNA Codes) Abstract Slides
  26. M. Tamer Kosan, On modules and rings in which complements are isomorphic to direct summands, PDF
  27. Gangyong Lee, Quasi-Baer module hulls and examples Abstract Slides
  28. Yuanlin Li, Nil clean group rings Abstract, Slides
  29. Sergio Lopez, A Monoid Structure on the Set of All Binary Operations Over a Fixed Set,PDF
  30. Xavier Mary, Perspectivity, special ceannesssand chains of Idempotents, Abstract Slides
  31. Sanjeev Kumar Maurya,Some remarks on S-artinian rings and modules.
  32. Ghulam Muhiuddin, More General form of fuzzy ideals of BCK/BCI-algebras.
  33. Intan Muchtadi-Alamsyah, Cyclic and constacyclic Codes over Z_8+vZ_8, PDF
  34. Diksha Mukhija, A norm theorem for differential forms, PDF
  35. Zahra Nazemian, Strong tilting of algebras and its iteration PDF .
  36. Jae Keol Park, Baer module hulls of modules PDF
  37. Asiyeh Rafieipour, A Monoid Structure on the Set of all Binary Operations over a Fixed Set and some Properties.
  38. Angel del Rio, The Gruenberg-Kegel graph of finite solvable cut groups, Abstract Slides
  39. Tariq Rizvi, On the Schroder-Bernstein property PDF
  40. Cosmin Roman, Continuous Hulls of Modules, PDF
  41. Louis Rowen, Representability of algeras with ACC Abstract Slides
  42. Martha Sandowal, Properties of strongly harmonic and Gelfand modules: idioms, frames and associated
    topological spaces Abstract Slides
  43. B. Saraç, Noetherian rings with small profiles, Abstract Slides
  44. Anuradha Sharma, Mass formulae for self-dual, self-orthogonal and LCD codes over finite commutative chain rings.Abstract, Slides>
  45. Patrick Solé, codes over non-unital rings PDF
  46. Ashish Srivastava, The Schroeder-Bernstein problem for modules Abstract, Slides
  47. Daniel Smertnig,Noncommutative rational Pólya series Abstract Slides
  48. Steve Szabo, Taxonomy of Dedekind Finite and Reflexive Rings Abstract Slides
  49. Sarra Talbi, The Average Hull Dimension of Cyclic Codes over Finite non Chain Rings, PDF
  50. Zubeyir Turkoglu, On injective dimension of torsionfree modules,PDF
  51. Jay Wood, Homogeneous Weight Enumerators, PDF , Slides
  52. Mohamed F. Yousif, Modules with the Exchange Property, Abstract Slides


Thanks for using the Template .


There will be a proceedings for the NCRA, VII conference. The final approval is not yet reach. 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 2021. 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:
Schedule for the talk: Choose either from 9.00 a.m. to 11.30 a.m. (European time) or from 5.30 p.m. to 8.p.m.
Title of the talk:
you can contact us by email :
For A. Leroy: André Leroy
For A. Laghribi: Ahmed Laghribi

Social and cultural event

Any idea for this ? What could be an informal online social meeting? Of course, we can forget about it... Well here is a virtual visit of the Louvre Lens. This is in French... Le Louvre Lens


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


  1. LML (laboratoire de mathématiques de Lens).
  2. BQR
  3. GDR TLAG.