Invited Addresses

Conference and Workshop Talks

• Banff International Research Station Workshop on Operator Spaces, "A family of norms with applications in quantum information theory," Banff, Alberta, June 2010.
• Fourth International Conference on Quantum, Nano and Micro Technologies, ICQNM 2010, "Schmidt norms and entanglement theory," St. Maarten, February 2010.
• Canadian Mathematical Society Winter 2009 Meeting, Special Session on Operator Algebras, "Quantum error correction on infinite dimensional Hilbert space," Windsor, Ontario, December 2009.
• Canadian Quantum Information Summer School, Fields Institute, Toronto, August 2009, "Quantum information basics".
• Operator Structure in Quantum Information Workshop, Fields Institute, July 2009, "Introduction to some aspects of operator theory relevant to quantum information".
• ICTP Conference on Matrix Analysis and Applications, Trieste, Italy, June 2009, "Introduction to quantum information".
• Workshop of the EPSRC Network on Phenomena in High Dimensions, Lancaster University, England, September 2008, "Introduction to some mathematical aspects of quantum information", 3 lectures.
• Workshop on Numerical Ranges and Numerical Radii, College of William & Mary, Virginia, July 2008, "On numerical ranges in quantum computing".
• QEC07: First International Conference on Quantum Error Correction, University of Southern California, December 2007, "Complementarity in quantum cryptography and error correction".
• Fields Institute Workshop on Noncommutative Dynamics and Applications, July 2007, "Some mathematical aspects of quantum error correction".
• Banff International Research Station Workshop on Operator Structures in Quantum Information Theory, Banff, Alberta, February 2007, "Introduction to quantum error correction".
• Quantum Probability, Information and Control Symposium, Nottingham, U.K., July 2006, "Quantum error correcting subsystems".
• Canadian Operator Symposium, University of Calgary, Calgary, Alberta, June 2006, "Quantum error correcting subsystems".
• Great Plains Operator Theory Symposium, University of Iowa, Iowa City, Iowa, May 2006, "Higher-rank numerical ranges in quantum error correction".
• Canadian Mathematical Society Winter Meeting, Special Session on Matrix Analysis, Victoria, B.C., December 2005, "Passive quantum error correction".
• Canadian Institute for Advanced Research, Quantum Information Processing Meeting, Quebec City, Quebec, December 2005, "Passive quantum error correction".
• Canadian Operator Symposium, University of Ottawa, Ottawa, Ontario, June 2005, "Operator quantum error correction".
• Great Plains Operator Theory Symposium, University of Central Florida, Orlando, Florida, June 2005, "Operator quantum error correction".
• Canadian Mathematical Society Summer Meeting, Special Session on Operator Algebras, Operator Theory and Harmonic Analysis, Waterloo, Ontario, June 2005, "On graph algebras and related things".
• Banff International Research Station Workshop on The Structure of Amenable Systems, Banff, Alberta, November 2004, "A class of limit algebras associated with directed graphs".
• London Mathematical Society Conference on Operator Algebras and Random Matrices, Ambleside, Cumbria, U.K., July 2004, "Quantum computing".
• Conference on C*-algebras and Quantum Information Theory, Los Angeles, June 2004, "Quantum error correction and Young tableaux".
• CBMS Conference on Graph Algebras, University of Iowa, Iowa City, Iowa, June 2004, "On nonselfadjoint graph algebras".
• Canadian Operator Symposium, University of Waterloo, Waterloo, Ontario, May 2004, "Quantum computing".
• Fields Institute Weekend Meeting on Operator Algebras, Toronto, Ontario, March 2004, "Non-selfadjoint directed graph operator algebras".
• Banff International Research Station Workshop on Nonselfadjoint Operator Algebras, Banff, Alberta, December 2003, "Directed graph operator algebras".
• Young Analysts Meeting of the Southeast, Greenville, South Carolina, July 2003, "Free semigroupoid algebras from directed graphs".
• Great Plains Operator Theory Symposium, University of Illinois at Urbana-Champaign, Illinois, May 2003, "Quantum error correction and the structure of the commutant".
• AMS Meeting, Bloomington, Indiana, April 2003, Special Session on Free Probability Theory, "Partly free algebras from directed graphs".
• Fields Institute Workshop on Nonselfadjoint Operator Algebras, Toronto, Ontario, July 2002, "Weighted shifts on Fock space".
• CMS Annual Meeting 2001, Toronto, Ontario, December 2001, Special Session on Free Probability, "Weighted shifts on Fock space".
• 2001 Canadian Operator Algebra Symposium, MSRI, Berkeley, California, April 2001, "Wavelet representations and Fock space on positive matrices".
• AMS Meeting, Lawrence, Kansas, March 2001, Special Session on $C^*$-algebras and Crossed Products, "Completely positive maps in dilation and wavelet decompositions".
• CMS Annual Meeting, Vancouver, British Columbia, December 2000, Special Session on Operator Algebras, "Completely positive maps in dilation and wavelet decompositions".
• AMS Meeting, Birmingham, Alabama, November 2000, Special Session on Operator Algebras and their Representations, "The curvature invariant of a non-commuting n-tuple".
• Iowa-Nebraska Functional Analysis Seminar, Des Moines, Iowa, October 2000, "Dilation theory and Cuntz representations".
• AMS Meeting, Toronto, Ontario, September 2000, Special Session on Operator Algebras, "The curvature invariant of a non-commuting n-tuple."
• AMS 2000 Joint Mathematics Meetings, Washington, D.C., Special Session on Operator Algebras, "The curvature invariant of a non-commuting n-tuple of operators."
• Operator Theory on the Prairie Seminar, Regina, Saskatchewan, August 1999, "Isometric dilations of non-commuting n-tuples".

Colloquiua

• University of Bristol, Quantum Information Seminar, June 2010, "Some aspects of operator theory relevant to quantum information".
• Universite de Lyon, Department of Mathematics Probability Seminar, May 2010, "A family of norms with applications in quantum information theory".
• University of Central Florida, Department of Mathematics Colloquium, March 2009, "Complementarity in quantum cryptography and error correction".
• Texas A & M University, Department of Computer Science Seminar, November 2008, "Complementarity in quantum cryptography and error correction".
• University of Houston, Department of Mathematics Analysis Seminar, November 2008, "Complementarity in quantum cryptography and error correction".
• University of Florida, Department of Mathematics Colloquium, November 2008, "Complementarity in quantum cryptography and error correction".
• University of Hawaii, Department of Mathematics Colloquium, April 2008, "Complementarity in quantum cryptography and error correction".
• University of Central Florida, Department of Mathematics Colloquium, November 2007, "Complementarity in quantum cryptography and error correction".
• University of Cambridge, Centre for Quantum Computation, Cambridge, U.K., September 2007, "A completely bounded map and norm primer".
• National University of Ireland - Maynooth, Department of Mathematical Physics Seminar, July 2006, "Quantum error correcting subsystems".
• Lancaster University, Department of Mathematics & Statistics Seminar, Lancaster, U.K., July 2006, "Quantum error correcting subsystems".
• University of Cambridge, Centre for Quantum Computation, Cambridge, U.K., July 2006, "Quantum error correcting subsystems".
• CIMA de la UAEH, Seminario de Investigacion en Matematicas, Pachuca, Mexico, January 2006, "Introduction to passive quantum error correction".
• University of Waterloo, Department of Pure Mathematics Analysis Seminar, November 2005, "Passive quantum error correction".
• University of Toronto, Department of Mathematics Operator Theory Seminar, November 2005, "Passive quantum error correction".
• Perimeter Institute, Quantum Information Seminar, May 2005, "Operator quantum error correction".
• East Carolina University, Department of Mathematics Colloquium, April 2005, "A unified and generalized approach to quantum error correction".
• University of Waterloo, Department of Pure Mathematics Analysis Seminar, November 2004, "Introduction to quantum error correction".
• University of Waterloo, Department of Pure Mathematics Analysis Seminar, November 2004, "A brief mathematical introduction to quantum computing".
• University of Toronto Quantum Information Seminar, Fields Institute, May 2004, "Quantum error correction and Young tableaux".
• Institute for Quantum Computing, University of Waterloo, Institute for Quantum Computing Seminar, April 2004, "Quantum error correction and Young tableaux".
• University of Nebraska-Lincoln, Department of Mathematics Colloquium, April 2004, "Quantum computing".
• University of Nebraska-Lincoln, Department of Mathematics Analysis Seminar, April 2004, "Directed graph operator theory".
• University of Illinois at Urbana-Champaign, Department of Mathematics Analysis Seminar, November 2003, "Operator methods in quantum information theory".
• Virginia Tech University, Department of Mathematics Colloquium, October 2003, "Operator algebras from directed graphs".
• University of Illinois at Urbana-Champaign, Department of Mathematics Analysis Seminar, February 2003, "Free semigroupoid algebras".
• Wabash Analysis Mini-conference, Indianapolis, Indiana, September 2002, "Free semigroupoid algebras".
• Joint Institute for Quantum Computing/Perimeter Institute for Theoretical Physics Colloquium, June 2002, "Quantum channels and operator algebras".
• University of Guelph, Department of Mathematics and Statistics Colloquium, February 2002, "Isometries with orthogonal ranges".
• Kansas State University, Department of Mathematics Colloquium, January 2002, "Isometries with orthogonal ranges".
• University of Oxford, Mathematical Institute Functional Analysis Seminar, November 2001, "Isometries with orthogonal ranges".
• King's College London, Department of Mathematics Analysis Seminar, November 2001, "Isometries with orthogonal ranges".
• Lancaster University, U.K., Department of Mathematics and Statistics Pure Mathematics Seminar, October 2001, "Isometries with orthogonal ranges".
• University of Waterloo, Department of Pure Mathematics Analysis Seminar, June 2001, "Simple C*-algebras generated by non-commutative weighted shifts".
• Great Plains Operator Theory Symposium, University of New Hampshire, Durham, New Hampshire, June 2001, "Quantum channels, wavelets, dilations, and representations of O_n".
• Canadian Operator Symposium, Fields Institute, Toronto, Ontario, May 2000, "The curvature invariant of a non-commuting n-tuple of operators".
• University of Western Ontario, Department of Mathematics Analysis Seminar, February 2000, "Non-commuting n-tuples and dilation theory".
• Canadian Operator Symposium, University of PEI, Charlottetown, Prince Edward Island, May 1999, "Isometric dilations of non-commuting finite rank n-tuples".
• Canadian Operator Symposium, University of Alberta, Edmonton, Alberta, May 1998, "Factoring in non-commutative analytic Toeplitz algebras".