External Activities
External Lectures / Papers / Presentation

• "Decay rates of linear Ito-Volterra equations." Invited Lecture, Humboldt University Berlin, August 2001.
• "Arms Race Models with Memory." Quantitative Finance Seminar, DCUBS, November 2000.
• "Connection between stability types of Ito-Volterra equations." Invited lecture, University of Manchester, December 2000.
• "Asymptotic behaviour of Ito-Volterra equations." Short talk, Christmas Mathematical Symposium, DIAS, December 2000.
• "Asymptotic behaviour of the stochastic pantograph equation with multiplicative noise." Poster presentation, Conference on Applied Analysis and Differential Equations, Wadham College, Oxford, July 2001.
• "Oscillatory behaviour of solutions of the stochastic pantograph equation." Poster presentation, Conference on Applied Analysis and Differential Equations, Wadham College, Oxford, July 2001.
• "Stability and Growth Rates of Solutions of the stochastic pantograph equations." Poster presentation, Conference on Applied Analysis and Differential Equations, Wadham College, Oxford, July 2001.

• "On 90 degrees scattering in field theories." Invited Lecture, Department of Mathematical Physics, University College Dublin, October 2000.

• "Modelling financial markets." Invited Lecture, DCU Physics Seminar, 29 March 2001

• "Simulations of synchrotron emission from gamma-ray bursts." SURF2000 Meeting, Mykonos, Greece, 4 October 2000.
• "Emission spectra of relativistic blastwaves." Invited Seminar, University of Grenoble, 18 January 2001.
• "Gamma-ray bursts - the most powerful events in the universe (and still a puzzle)." Invited Talk COSMOS2001 Amateur Astronomy Meeting, 24 March 2001.

• "Sectors of self-similar collapse." London Relativity Seminar, Queen Mary, University of London, November 2000.
• "What's inside a black hole." Talk, Irish Mathematical Students Association Meeting, Maynooth, December 2000.
• "Gravitational collapse of self-similar shells." Seminar, Department of Mathematical Physics, UCD, February 2001
• "Stability of naked singularities in self-similar collapse." Talk, Inaugural British Gravity Meeting, University of Southampton, March 2001.
• "Cauchy horizon stability in self-similar collapse." Talk, 16th International Conference on General Relativity and Gravitation, Durban, July 2001.
• "A property of isotropic cosmological singularities." Poster Presentation, 16th International Conference on General Relativity and Gravitation, Durban, July 2001.
• "Non-radial null geodesics in spherical dust collapse." Poster Presentation (with F. Mena), 16th International Conference on General Relativity and Gravitation, Durban, July 2001.
• "Weak solutions for shell-crossing singularities." Poster Presentation, 16th International Conference on General Relativity and Gravitation, Durban, July 2001.
• "Weak solutions for weak singularities." Journees Relativistes Conference, UCD, September 2001.

• "Parameter-uniform convergence of the discrete derivatives for convection diffusion problems." I.S.S.E.C. Conference, School of Engineering, University College Dublin, 18-19 May 2001.
• "Singularly perturbed differential equations with non-smooth data." Biennial Conference on Numerical Analysis, University of Dundee, UK, 26-29 June 2001.

• "Finitely generated metabelian groups." ETH Zurich, Switzerland, April 2001.

• "Asymptotics of a model problem for molecular predissociation." Seminar, Department of Mathematical Physics, NUI Galway, February 2001.
• "A differential equation model for Aujezsky's disease in Irish pig herds." Poster Presentation (with Glenn Fingleton), Conference on non-linear Analysis and Differential Equations, Wadham College, Oxford, July 2001.