Working with implicit surfaces and point clouds Guillermo Sapiro University of Minnesota Implicit surfaces and point clouds in high dimensions are fundamental manifold representations for applications ranging from computer graphics to learning. In this talk we present theoretical and computational results with this data. Some of the areas we cover are solving flows on surfaces, finding geodesics, and comparing manifolds. We present applications in computer graphics, image processing, brain imaging, and shape recognition. Joint work with F. Memoli. Guillermo Sapiro is a Distinguished McKnight University Professor with the Electrical and Computer Engineering Department at the University of Minnesota. G. Sapiro works on geometry and geometric partial differential equations, both in theory and applications in image sciences, shape, and computational biology. He has authored and co-authored numerous papers in this area and has written a book published by Cambridge University Press, January 2001. G. Sapiro was awarded the Gutwirth Scholarship for Special Excellence in Graduate Studies in 1991, the Ollendorff Fellowship for Excellence in Vision and Image Understanding Work in 1992, the Rothschild Fellowship for Post- Doctoral Studies in 1993, the Office of Naval Research Young Investigator Award in 1998, the Presidential Early Career Awards for Scientist and Engineers (PECASE) in 1998, and the National Science Foundation Career Award in 1999. G. Sapiro is a member of IEEE and SIAM, where he serves as the Vice-Chair for the Imaging Sciences Activity Group.