Projectively unique polytope
In discrete geometry, a polytope is projectively unique (or projectively stable) if it has a unique convex realization up to projective transformations.
The study of projectively unique polytopes was initiated by Geoffrey C. Shephard, Micha Perles, Peter McMullen and Branko Grünbaum. Later significant contributions are also due to Karim Adiprasito and Günter M. Ziegler.