Conference Presentations and Lectures

• The Hasse-Weil Zeta Function of a Quotient Variety
  CMS Conference Waterloo, Ontario , 4-6 June, 2005.
• Mazur's Question and Modular Diagonal Quotient Surfaces.
  Quebec-Maine Conference U Laval, Quebec , 2-3 October, 2004.
• Mazur's question for mod 11 Galois representations.
  Workshop on Algebraic Modular Forms and Modular Forms mod p (H. Darmon, M. Savin), CRM, University of Montreal, Montreal, 1--7 October, 1998.
• Diagonal quotient surfaces and a question of Mazur.
  Number Theory and Arithmetical Geometry: Arithmetical Applications of Modular Forms (G. Frey, J. Bost), San Feliu de Guixols, Spain, 24--29 October, 1997.
• Applications of diagonal quotient surfaces to a problem of Mazur.
  Conference on Arithmetic Algebraic Geometry (H. Koch, J. Kramer, E.-W. Zink), Berlin, Germany, 21--26 March, 1996. {Max-Planck Institute f\"ur Mathematik Bonn Preprint No.\ 1996-51, 5pp.}