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- Heat kernel (1)
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- Infinite Infrared Regularization in Krein Spaces (2003)
- Presentation at the AMS Southeastern Sectional Meeting 14-16 March 2003, and the Workshop Asymptotic Analysis, Stability, and Generalized Functions', 17-19 March 2003, Louisiana State University, Baton Rouge, Louisiana. See the corresponding papers "Mathematical Problems of Gauge Quantum Field Theory: A Survey of the Schwinger Model" and "Infinite Infrared Regularization and a State Space for the Heisenberg Algebra".

- Estimates for the Heat Kernel Estimates on weighted graphs (2001)
- Presentation at the University of Natal, Pietermaritzburg, South Africa, 25 May 2001. See the corresponding paper "A Note on Heat Kernel Estimates on Weighted Graphs with Two-Sided Bounds on the Weights".

- Zeno Dynamics in Quantum Statistical Mechanics (2003)
- Presentation at the Università di Pisa, Pisa, Itlay 3 July 2002, the conference on Irreversible Quantum Dynamics', the Abdus Salam ICTP, Trieste, Italy, 29 July - 2 August 2002, and the University of Natal, Pietermaritzburg, South Africa, 14 May 2003. Version of 24 April 2003: examples added; 16 December 2002: revised; 12 Sptember 2002. See the corresponding papers "Zeno Dynamics of von Neumann Algebras", "Zeno Dynamics in Quantum Statistical Mechanics" and "Mathematics of the Quantum Zeno Effect"