nLab Alexander Postnikov

On total positivity

Alexander Postnikov, Total positivity, Grassmannians, and networks, arXiv:math/0609764
Alexander Postnikov, Lectures on positive Grassmannian, writeup by A. Morales, pdf

Related combinatorial geometry

Thomas Lam, Alexander Postnikov, Alcoved polytopes I, math.CO/0501246
P. Galashin, A. Postnikov, Purity and separation for oriented matroids, arXiv:1708.01329

On a motivic approach to scattering amplitudes:

Nima Arkani-Hamed, Jacob Bourjaily, Freddy Cachazo, Alexander Goncharov, Alexander Postnikov, Jaroslav Trnka, Grassmannian geometry of scattering amplitudes, Cambridge Univ. Press 2016
Nima Arkani-Hamed, Jacob L. Bourjaily, Freddy Cachazo, Alexander B. Goncharov, Alexander Postnikov, Jaroslav Trnka, Scattering amplitudes and the positive Grassmannian, arCiv:1212.5605

category: people

Last revised on September 24, 2024 at 14:31:00. See the history of this page for a list of all contributions to it.