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68. Indian Institute of Technology, Bombay, India (invited by A. Bhattacharya, January 2025)
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67. University of Liverpool, UK (invited by A. Papaioannou, December 2024)
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66. Bulgarian Academy of Sciences, Bulgaria (invited by M. Savov, November 2024)
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65. University of Warwick, UK (invited by E. Horton, May 2024)
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64. University of Liverpool, UK (invited by A. Papaioannou and C. Constantinescu, April 2024)
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63. University College London, UK (invited by Neofytos Rodosthenous, January 2024)
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62. University of Angers, France (invited by Loic Chaumont, December, 2023 and June, 2024)
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61. University of Cologne, Germany (invited by Hanspeter Schmidli and Leonie Brinker, December, 2022)
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60. Graz University of Technology, Austria (invited by Stefan Thonhauser, June 2022)
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59. ISEG, Portugal (invited by Agnieszka Bergel and Alfredo Egidio dos Reis, May 2022)
- 58. University of Liverpool, UK (invited by C. Constantinescu and A. Papaioannou, April 2022)
- 57. University of Leeds, UK (invited by J. Palczewski, February 2020)
- 56. University of York, UK (invited by L. Ramsden, February 2020)
- 55. University of Liverpool, UK (invited by C. Constantinescu, February 2020)
- 54. Universität Augsburg, Germany (invited by V. Wachtel, November 2019)
- 53. Heriot-Watt University, UK (invited by S. Foss, November 2019)
- 52. Kansai University, Japan (invited by K. Yamazaki, March 2019)
- 51. University of Amsterdam, The Netherlands (invited by M. Mandjes, February 2019)
- 50. University of Liverpool, UK (invited by C. Constantinescu, November 2018)
- 49. University of Manchester , UK (invited by R. Loeffen, November 2018)
- 48. Eurandom, The Netherlands (invited by S. Kapodistria and B. Zwart, September 2018)
- 47. CWI, The Netherlands (invited by B. Zwart, May 2018)
- 46. TU Dresden, Germany (invited by V. Knopova and R. Schilling, December 2017)
- 45. Eurandom, The Netherlands (invited by S. Kapodistria and M. Vlasiou, October 2017)
- 44. University of Illinois at Urbana-Champaign, USA (invited by Runhuan Feng, May 2017)
- 43. King's College London, UK (invited by A. Mijatović, February 2017)
- 42. University of Liverpool, UK (invited by C. Constantinescu, February 2017)
- 41. University of Manchester , UK (invited by R. Loeffen, February 2017)
- 40. London School of Economics and Political Science, UK (invited by E. Baurdoux, February 2017)
- 39. Vienna University of Technology, Austria (invited by J. Eisenberg, January 2017)
- 38. London School of Economics and Political Science, UK (invited by E. Baurdoux, December 2016)
- 37. Eurandom, The Netherlands (invited by S. Kapodistria and M. Vlasiou, March 2016)
- 36. Eurandom, The Netherlands (invited by O. Boxma and B. Zwart, June 2015)
- 35. CIMAT Mexico (invited by V. Rivero, May-June 2015)
- 34. University of Queensland, Australia (invited by Y. Nazarathy, April 2015)
- 33. University of Adelaide, Australia (invited by G. Nguyen, April 2015)
- 32. Reno University, USA (invited by T. Kozubowksi, February 2015)
- 31. Columbia University, USA (invited by J. Blanchet, February 2015)
- 30. Eurandom, The Netherlands (invited by S. Badila and S. Kapodistria, January 2015)
- 29. Nankai University, China (invited by J. Guo and Bo Li, July 2014)
- 28. Universidad Torcuato Di Tella, Argentina (invited by N. Muler, October 2013)
- 27. University of Liverpool, UK (invited by C. Constantinescu, September 2013)
- 26. Indian Statistical Institute, India (invited by K. Maulik, January 2013)
- 25. TUE, The Netherlands (invited by M. Vlasiou, October 2012)
- 24. Swinburne University of Technology, Australia (invited by Y. Nazarathy, February 2012)
- 23. University of Melbourne, Australia (invited by P. Taylor, February 2012)
- 22. ISFA, Universite Lyon 1, France (invited by S. Loisel, September 2011)
- 21. Universite Libre de Bruxelles, Belgium (invited by G. Latouche, May 2011)
- 20. University of Tasmania, Australia (invited by M. O'Reilly, November-December 2010 and January-February 2012)
- 19. University of Ottawa, Canada (invited by R. Kulik, June 2010)
- 18. University of Cambridge, Isaac Newton Institute for Mathematical Sciences, UK (invited by S. Foss, May 2010)
- 17. University of Zagreb, Croatia (invited by B. Basrak, April 2010, 2013, April 2014)
- 16. Universite de Lausanne, Switzerland (invited by C. Constantinescu and H. Albrecher, March 2010)
- 15. RICAM, Austria (invited by C. Constantinescu, November 2009)
- 14. Eurandom, The Netherlands (invited by A. Lopker and M. Vlasiou, October 2009 and August 2010)
- 13. Universite d'Angers, France (invited by L. Chaumont, April 2009)
- 12. Eurandom, The Netherlands (invited by A. Lopker and O. Boxma, April 2008 and August 2008)
- 11. Tokyo University of Science, Japan (invited by M. Miyazawa, November 2007)
- 10. Bath University, UK (invited by A. Kyprianou, November 2006)
- 9. Sobolev Institute of Mathematics, Siberian Branch of Russian Academy of Sciences, Russia (invited by D. Korshunov, August 2006)
- 8. Heriot-Watt University, Department of Actuarial Mathematics and Statistics, UK (invited by A. Kyprianou, April 2006)
- 7. Eurandom, The Netherlands (invited by B. Zwart, March 2006)
- 6. University of Manchester, UK (invited by R. Doney, January 2005)
- 5. Université de Pau, Laboratoire De Mathématiques Appliquées, France (invited by F. Avram, July 2003, July 2005 and July 2006)
- 4. Heriot-Watt University, Department of Actuarial Mathematics and Statistics, UK (invited by S. Foss and S. Zachary, December 2002 and October 2003)
- 3. Computer Science Department of the École Normale Supérieure, France (invited by B. Blaszczyszyn, May 2002)
- 2. School of Industrial and Systems Engineering, Georgia Institute of Technology, USA (invited by H. Ayhan, July 2001)
- 1. Department of Operation Research, University of North Carolina, USA (invited by V. Kulkarni, July 2001)