Abstract for the talk on 26.06.2023 (17:15 h)

Nonlinear Algebra Seminar

Rainer Sinn (Universität Leipzig)
Amplituhedra in the Grassmannian of Lines in 3-space
26.06.2023, 17:15 h, MPI für Mathematik in den Naturwissenschaften Leipzig, G3 10 (Lecture hall)

I will present an ongoing work in progress with Simon Telen where we study amplituhedra contained in the Grassmannian Gr(2,4) of lines in projective 3-space. We are particularly interested in geometric descriptions, the algebraic boundary, and the adjoint which should correspond to the numerator of the canonical form in the sense of positive geometry.