The talk will begin with the reconstruction of three-dimensional bodies from their two-dimensional projections.  Then I analyze the induced action of the Euclidean group on the body’s projected outlines using moving frames, leading to a complete classification of the outline differential invariants and the associated outline signature of the body.

Zoom invitation is sent to the geometry and topology seminar list. If you are not on the list, please, contact Peter McGrath host to get the link.