Mirror Symmetry and Tropical Geometry: NSF-CBMS Conference on Tropical Geometry and Mirror Symmetry, December 13-17, 2008, Kansas State University, Manhattan, Kansas

Symmetry for Elliptic PDEs: INdAM School on Symmetry for Elliptic PDEs, May 25-29, 2009, Rome, Italy : (30 Years After a Conjecture of De Giorgi, and Related Problems)

Combinatorics and Physics: Mini-Workshop on Renormalization, December 15-16, 2006, Max Planck Institut Für Mathematik, Bonn, Germany : Conference on Combinatorics and Physics, March 19-23, 2007, Max Planck Institut Für Mathematik, Bonn, Germany

Interactions Between Hyperbolic Geometry, Quantum Topology and Number Theory: Workshop, June 3-13, 2009, Conference, June 15-19, 2009, Columbia University, New Ork, NY

Harmonic Maps and Differential Geometry: A Harmonic Map Fest in Honour of John C. Wood's 60th Birthday, September 7-10, 2009, Cagliari, Italy

Symmetries and Related Topics in Differential and Difference Equations: Jairo Charris Seminar 2009, Escuela de Matemáticas, Universidad Sergio Arboleda, Bogotá, Colombia

Tomography and Inverse Transport Theory: International Workshop on Mathematical Methods in Emerging Modalities of Medical Imaging, October 25-30, 2009, Banff, Canada : International Workshop on Inverse Transport Theory and Tomography, May 16-21, 2010, Banff, Canada

The Quantum Illuminati: The Forbidden Answer to Existence

Mathematical Aspects of Quantization: Center for Mathematics at Notre Dame, Summer School and Conference, May 31-June 10, 2011, Notre Dame University, Notre Dame, Indiana

Analysis, Geometry and Quantum Field Theory

Fluids and Plasmas: Geometry and Dynamics: Geometry and Dynamics