Selection of recent talks:

"GL(2,R) geometry of 5th order ODEs" [.pdf] , A pdf presentation from a conference Recent advances in Differential Geometry , Universita' del Salento, Lecce, June 2007
"Differential equations and conformal structures, Trieste version" [.pdf] , A pdf presentation from International Workshop on Geometry of vector distributions, differential equations, and variational problems , SISSA, Trieste, December 2006
"Differential equations and conformal structures" [.pdf] , A pdf presentation from Workshop at 2006 IMA Summer Program "Symmetries and Overdetermined Systems of Partial Differential Equations" , Minneapolis, July 2006
"Distinguished dimensions for special Riemannian geometries" [.pdf] , A pdf presentation from Workshop on "Special Geometries in Mathematical Physics" , Kuehlungsborn, March 2006
"Special Riemannian geometries in dimensions 5, 8, 14 and 26", transparencies of a talk at IFT Symposium, Warszawa, December 2005 [ .pdf ]
"Differential equations and conformal structures", transparencies of a talk at IXth International Conference on Differential Geometry and its Applications, Prague, September 2004 [ .ps ]

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