Event time:
Tuesday, February 16, 2021 - 4:00pm
Location:
https://yale.zoom.us/j/96501374645
Speaker:
Jeff Danciger
Speaker affiliation:
University of Texas, Austin
Event description:
We study properly convex real projective structures on closed 3-manifolds. A hyperbolic structure is one special example, and in some cases the hyperbolic structure may be deformed non-trivially as a convex projective structure. However, such deformations seem to be exceedingly rare. By contrast, we show that many closed hyperbolic manifolds admit a second convex projective structure not obtained through deformation. We find these examples through a theory of properly convex projective Dehn filling, generalizing Thurston’s picture of hyperbolic Dehn surgery space. Joint work with Sam Ballas, Gye-Seon Lee, and Ludovic Marquis.
Research Area(s):
Special note:
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