Plenary talks

  1. "TBD", plenary talk, Operator Theory and Operator Algebras: A conference in honour of Kenneth R. Davidson , University of Waterloo.
  2. "Fell absorption principle for semigroup operator algebras", plenary talk, East Coast Operator Algebra Symposium 2024, North Carolina State University, Raleigh NC, November 9-10, 2024.
  3. "Operator algebras associated with C*-correspondences and product systems", two plenary talks, 9th Summer School in Operator Theory , National Technical University of Athens, Greece, July 10-15, 2023.
  4. "Tensor algebras of Product Systems and their C*-envelpes", plenary talk, 46th Canadian Operator Symposium , University of Manitoba, June 4 - June 8, 2018.
  5. "All semicrossed products of operator algebras are stably isomorphic to crossed products", plenary talk, Mathematical Analysis in Athens - Katavolos and Nestoridis , University of Athens, December 15-19, 2017.
  6. "Non-Selfadjoint Operator Algebras: dynamics, classification and C*-envelopes" five one-hour plenary talks, Recent Advances in Operator Theory and Operator Algebras 2014, Indian Statistical Institute, Bangalore Statistics and Mathematics Unit, India, December 09, 2014 - December 19, 2014.
  7. "Piecewise Conjugacy as an isomorphism invariant for Operator Algebras" one-hour plenary talk, International Conference on Operator Algebras, Nanjing University of Science and Technology, China, June 20-23, 2013.
  8. ?Crossed product constructions in operator algebra theory?, one-hour plenary talk, 23rd International Conference on Operator Theory, Timisoara, June29-July 4, 2010, Romania.
  9. "Non-selfadjoint crossed products", one-hour plenary talk, 22nd International Conference on Operator Theory, Timisoara, Romania, July 3-8, 2008.
  10. "Operator algebras for multivariable dynamics", one-hour plenary talk, 35rd Canadian Operator Symposium, University of Guelph, June 5-9, 2007.
  11. "Operator algebras for multivariable dynamics", one-hour plenary talk, GPOTS 2007, ,University of Nebraska-Lincoln, May 15-20, 2007.
  12. "Operator algebras from directed graphs", one-hour invited address, 11th Panellenic Analysis Conference ,University of Thessaloniki, May 23-25, 2006.
  13. "The structure of free semigroup algebras", opening plenary talk, SUMIRFAS 2000, August 11 2000, Texas A&M University.
  14. "Geometric aspects of the theory of nest algebras" two ninety minutes plenary talks to the NATO Advanced Study Institute on "Operator Algebras and Applications", at Samos (August 1996).

Invited talks to the American Mathematical Society

  1. "Crossed products of operator algebras" presented at the 2Spring Central Sectional Meeting North Dakota State University, Fargo, ND, April 16, 2016. (Special Session on Dynamics, Inverse Semigroups, and Operator Algebras).
  2. "Local maps and the representation theory of operator algebras" presented at the 2015 Joint Mathematics Meeting, San Antonio, TX, January 12, 2015. (Special Session on Noncommutative Function Theory).
  3. "Piecewise Conjugacy as an isomorphism invariant for Operator Algebras" presented at the American Mathematical Society Spring Central Sectional Meeting at Ames, Iowa, April 26-28, 2013. (Special Session on Operator Algebras and Topological Dynamics).
  4. "The C*-envelope of a tensor algebra revisited" presented at the Annual Meeting of the American Mathematical Society, New Orleans LA, January 8, 2011. (Special Session).
  5. "Convex combinations of extreme points in operator algebras" presented at the American Mathematical Society regional meeting at Columbia, SC, March 16, 2001. (Special Session).
  6. "Primitive limit algebras and C*-envelopes", presented at the American Mathematical Society regional meeting at Birmingham, AL, November 11, 2000. (Special Session).
  7. "Irreducible representations of limit algebras" presented at the Annual Meeting of the American Mathematical Society, Washington, DC, January 19, 2000. (Special Session).
  8. "Semisimple TUHF algebras are primitive", delivered at the special session "Operator Theory including applications in operator algebras and wavelets", 949th American Mathematical Society Meeting, Charlotte, NC, October 15-17, 1999.
  9. "Some primitive triangular operator algebras, their structure spaces and their epimorphisms" presented at the Annual Meeting of the American Mathematical Society, San Antonio TX, January 16, 1999 (Special Session).
  10. "Factorization in nest algebras II" presented at the Annual meeting of the American Mathematical Society, Baltimore MD, January 7-10, 1998 ( Special Session).
  11. "Some results on certain reflexive operator algebras" presented at the American Mathematical Society Regional Meeting, College Station TX, October 22-23, 1993 (Special Session).
  12. "Operator equations in CSL algebras", presented at the American Mathematical Society Regional Meeting, Tuscaloosa AL, March 14, 1992 (Special Session).
  13. " On reflexive operator algebras", presented at the American Mathematical Society Regional Meeting, Muncie IN, October 27-28, 1989 (Special Session).

    Other invited talks.

    1. "Fell absorption principle for semigroup operator algebras", invited talk, 7th MATH @ NTUA summer school in “Mathematical Analysis, National Technical University of Athens , Athens, Greece, July 2, 2024.
    2. "Isomorphisms and Stable Isomorphisms of Non-selfadjoint Operator Algebras, seminar talk, University of Illinois Urbana, November 13, 2023
    3. "Isomorphisms and stable isomorphisms of non-selfadjoint operator algebras", invited talk, NYC Noncommutative Geometry (online seminar), April 19, 2023.
    4. "Isomorphisms and stable isomorphisms of non-selfadjoint operator algebras", organizer and conference talk, IWOTA 2022, Krakow, Poland, September 6-10, 2022.
    5. "Isomorphisms and stable isomorphisms of non-selfadjoint operator algebras", invited conference talk in honor of Paul Muhly, Technion, Israel, June 26-July 1, 2022.
    6. "Co-universal C*-algebras for product systems, I", invited conference talk, Hilbert C*-Modules Online Weekend, Moscow Center for Fundamental and Applied Mathematics and Moscow State University, December 5-6, 2020.
    7. "Non-commutative boundaries for tensor algebras", member of Focused Research group, BIRS, Banff, Canada, March 1-8, 2020.
    8. "Hyperrigidity for operator algebras", invited seminar talk, Dynamics, Geometry and C*-algebras, University of Copenhagen, February 21, 2020.
    9. "The non-selfadjoint approach to the Hao-Ng isomorphism", invited talk at the special session Analysis and Synthesis for Operator Algebras, IWOTA 2019, July 19-23, Lisbon, Portugal.
    10. "Tensor algebras of product systems and their C*-envelopes", invited seminar talk, University of Illinois Urbana-Champaign, October 23, 2018.
    11. "Tensor algebras of product systems and their C*-envelopes", invited seminar talk, Chinese Academy of Science, Beijing, China, July 11, 2018.
    12. "Crossed Products of Operator Algebras: applications of Takai duality", invited talk, Multivariable Operator Theory at the Technion, Israel, June 18-22, 2017. (On the occasion of Baruch Solel's 65th Birthday.)
    13. "Crossed Products of Operator Algebras", invited talk, Groups, Dynamics, and Operators Algebras (conference organized by Kerr and Li), Queen Mary University, London, UK, July 19, 2016.
    14. "Crossed Products of Operator Algebras", invited talk, Chern Institute of Mathematics, Nankai University, Tianjin, China, June 17, 2016.
    15. "Local maps and representation theory", invited talk, Multivariate Operator Theory, Banff International Research Station, Alberta, Canada, April 5-10, 2015.
    16. "Piecewise Conjugacy as an isomorphism invariant for Operator Algebras", invited talk, Operator algebras and dynamical systems from number theory, Banff International Research Station, Alberta, Canada, November 24-29, 2013.
    17. "Operator Algebras, Dynamical Systems and C*-correspondences", two plenary talks, 2nd Summer School on Operator Theory, Karlovassi, Samos, Greece, July 23-28, 2012.
    18. "Dynamical Systems and Operator Algebras", two plenary talks, 1st Summer School on Operator Theory, Chios, Greece, July 25-30, 2011
    19. "Semicrossed Products of Operator Algebras and their C*-envelopes", invited speaker, Multivariate Operator Theory, Banff International Research Station, Alberta, Canada, August 15-20, 2010.
    20. "Semicrossed products of the non-commutative disc algebras", invited speaker, The Fields Institute, Workshop on multivariate operator theory, August 10-14, 2009.
    21. "Operator algebras for multivariable dynamics", Operator Methods in Fractal Analysis, Wavelets and Dynamical Systems, invited speaker, Banff International Research Station, December 2-7, 2006.
    22. "Operator algebras from directed graphs" one-hour invited address, 11th Panellenic Analysis Conference ,University of Thessaloniki, May 23-25, 2006.
    23. "Operator algebras from directed graphs" one-hour invited address, GroupoidFest 05, Iowa State University. Ameas, November 5,6, 2005
    24. "Operator algebras associated with directed graphs", main speaker, Professor Tsitas' retirement conference, University of Athens, July 14, 2004.
    25. "Isomorphisms of algebras associated with directed graphs", invited speaker, Coordinate methods in nonselfadjoint operator algebra, Banff International Research Station, December 13-18, 2003.
    26. "Representations of non-selfadjoint operator algebras", invited speaker, The Fields Institute, Workshop on Nonself-adjoint Operator Algebras, July 8-12, 2002.
    27. "Representations for operator algebras and applications to their facial structure", invited speaker, opening talk at Nebraska-Iowa Functional Analysis Seminar, Des Moines, October 13 2001.
    28. "Isomorphisms and epimorphisms of limit algebras" ma invited speaker, Nebraska-Iowa Functional Analysis Seminar, Des Moines, April 25, 1998.