We hereby certify that, Alessio Figalli, The University of Texas at Austin, participated in the International Workshop on Elliptic and Kinetic Partial Differential Equations – Thematic Program: Current Trends in Analysis and Partial Differential Equations, held at Instituto Nacional de Matemática Pura e Aplicada – IMPA, Rio de Janeiro, from July 06 to 17, 2015 and presented the mini course: “Flow of nonsmooth vector fields and applications. Part II” Rio de Janeiro, July 17, 2015. Emanuel Carneiro Organizing Committee We hereby certify that, Arshak Petrosyan, Purdue University, participated in the International Workshop on Elliptic and Kinetic Partial Differential Equations – Thematic Program: Current Trends in Analysis and Partial Differential Equations, held at Instituto Nacional de Matemática Pura e Aplicada – IMPA, Rio de Janeiro, from July 06 to 17, 2015 and presented the mini course: “The Thin Obstacle Problem” Rio de Janeiro, July 17, 2015. Emanuel Carneiro Organizing Committee We hereby certify that, Henri Berestycki, Ecole Des Hautes Etudes en Sciences Sociales, Paris, participated in the International Workshop on Elliptic and Kinetic Partial Differential Equations – Thematic Program: Current Trends in Analysis and Partial Differential Equations, held at Instituto Nacional de Matemática Pura e Aplicada – IMPA, Rio de Janeiro, from July 06 to 17, 2015 and presented the mini course: “Reaction-diffusion and propagation in non-homogenous media” Rio de Janeiro, July 17, 2015. Emanuel Carneiro Organizing Committee We hereby certify that, Irene M. Gamba, The University of Texas at Austin, participated in the International Workshop on Elliptic and Kinetic Partial Differential Equations – Thematic Program: Current Trends in Analysis and Partial Differential Equations, held at Instituto Nacional de Matemática Pura e Aplicada – IMPA, Rio de Janeiro, from July 06 to 17, 2015 and presented the mini course: “Analytical issues for non-local multi-linear interaction models: The Boltzmann and related equations” Rio de Janeiro, July 17, 2015. Emanuel Carneiro Organizing Committee We hereby certify that, Lihe Wang, University of Iowa, participated in the International Workshop on Elliptic and Kinetic Partial Differential Equations – Thematic Program: Current Trends in Analysis and Partial Differential Equations, held at Instituto Nacional de Matemática Pura e Aplicada – IMPA, Rio de Janeiro, from July 06 to 17, 2015 and presented the mini course: “Regularity theory of elliptic equations” Rio de Janeiro, July 17, 2015. Emanuel Carneiro Organizing Committee We hereby certify that, Luigi Ambrosio, Scuola Normale Superiore di Pisa, participated in the International Workshop on Elliptic and Kinetic Partial Differential Equations – Thematic Program: Current Trends in Analysis and Partial Differential Equations, held at Instituto Nacional de Matemática Pura e Aplicada – IMPA, Rio de Janeiro, from July 06 to 17, 2015 and presented the mini course: “Flow of nonsmooth vector fields and applications. Part I” Rio de Janeiro, July 17, 2015. Emanuel Carneiro Organizing Committee We hereby certify that, Saint-Raymond, Laure, École Normale Superieure de Paris, participated in the International Workshop on Elliptic and Kinetic Partial Differential Equations – Thematic Program: Current Trends in Analysis and Partial Differential Equations, held at Instituto Nacional de Matemática Pura e Aplicada – IMPA, Rio de Janeiro, from July 06 to 17, 2015 and presented the mini course: “From particle systems to collisional kinetic equations” Rio de Janeiro, July 17, 2015. Emanuel Carneiro Organizing Committee We hereby certify that, Yannick Sire, Universite Aix-Marseille, participated in the International Workshop on Elliptic and Kinetic Partial Differential Equations – Thematic Program: Current Trends in Analysis and Partial Differential Equations, held at Instituto Nacional de Matemática Pura e Aplicada – IMPA, Rio de Janeiro, from July 06 to 17, 2015 and presented the mini course: “KAM for PDES” Rio de Janeiro, July 17, 2015. Emanuel Carneiro Organizing Committee