12 Nov - 19 Nov 2022

University of Bristol,  UK

Host: Jeremy Rickard 

7 August- 20 August 2022

University of Glasgow, UK

Host: Ken Brown and Gwyn Bellamy

5 July - 31 July 2022

Universitat Auto'noma de Barcelona UAB, Spain 

Host: Pere Ara

June 2020 -  June 2021

University of Murcia 

Host: Manolo Saorin

19 -29 SEP 2019,  21- 30 Sep 2018, 15 Jul - 2 Aug 2017, 1- 23  Sep 2016

Padova University, Padova, Italy 

Host: Alberto Facchini

12- 19  Feb 2019, 22 Sep2017- 7 Oct 2017

Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic 

Host: Pavel Příhoda and Jan Trlifaj

December  2015- March 2016

Porto University, Purtugal

Host: Christian Lomp

18 Apr 2014 - 19 Aug 2014

Ohio University Center of Ring Theory and its Applications, Ohio, USA 

Host: Surender Kumar Jain

20 Jun 2014 - 23 Jun 2014

San Diego University, USA 

Host: Efim Zelmanov