Slides or videos of some of my talks:

• What does a Besse contact sphere look like?
  Geometria em Lisboa Seminar
  April 6, 2021
  
• Closed geodesics on reversible Finsler 2-spheres
  Geometry & Dynamics Seminar Tel-Aviv
  June 3, 2020
  
• Spectral characterizations of Besse and Zoll Reeb flows
  IAS/PU-Montreal-Tel-Aviv Symplectic Geometry Seminar
  May 8, 2020
  
• Spectral characterizations of Besse and Zoll Reeb flows
  VIII Workshop on Conservative Dynamics and Symplectic Geometry
  IMPA, Rio de Janeiro, Brasil
  August 7, 2019
  
• The periodic orbits problem in Tonelli Hamiltonian dynamics
  Workshop "Hamiltonian Systems, From Topology To Applications Through Analysis"
  MSRI, Berkeley, California
  August 24, 2018
  
• On the boundary rigidity problem for surfaces
  Deuxième congrès de la Société Mathématique de France
  Université de Lille, France
  June 4, 2018
  
• Periodic orbits of magnetic flows on the 2-sphere
  VII Workshop on Conservative Dynamics and Symplectic Geometry
  IMPA, Rio de Janeiro, Brasil
  August 7, 2017
  
• On marked boundary rigidity for surfaces
  Conference "100 Years of the Radon Transform"
  RICAM, Linz, Austria
  March 28, 2017
  
• Periodic orbits of exact magnetic flows on surfaces
  VI Workshop on Conservative Dynamics and Symplectic Geometry
  IMPA, Rio de Janeiro, Brasil
  August 4, 2015
  
• On isometry-invariant Geodesics in Product Manifolds
  V Workshop on Conservative Dynamics and Symplectic Geometry
  IMPA, Rio de Janeiro, Brasil
  September 4, 2013
  

Videos of talks given by my collaborators on joint work:

• Colin Guillarmou - Asymptotically Euclidean metrics without conjugate points are flat
  International Zoom Inverse Problems Seminar
  June 25, 2021
  
• Colin Guillarmou - Boundary and lens rigidity for non-convex manifolds
  Conference "Riemannian Geometry - Past, present, and future: an hommage to Marcel Berger"
  IHÉS, Paris, France
  December 6, 2017
  
• Peter Albers - Periodic Bounce Orbits of Prescribed Energy
  Geometry/Dynamical Systems seminar
  IAS, Princeton, New Jersey
  January 26, 2011