Results 11 to 20 of about 220,490 (165)
Numerical Schubert Calculus [PDF]
We develop numerical homotopy algorithms for solving systems of polynomial equations arising from the classical Schubert calculus. These homotopies are optimal in that generically no paths diverge. For problems defined by hypersurface Schubert conditions
Sottile, F. +5 more
core +5 more sources
Persistence module and Schubert calculus [PDF]
A multiplication on persistence diagrams is introduced by means of Schubert calculus. The key observation behind this multiplication comes from the fact that the representation space of persistence modules has the structure of the Schubert decomposition ...
Hiraoka, Yasuaki +2 more
core +4 more sources
Schubert Calculus according to Schubert
We try to understand and justify Schubert calculus the way Schubert did it.
Felice Ronga
core +3 more sources
We describe T -equivariant Schubert calculus on G(k, n), T being an n-dimensio- nal torus, through derivations on the exterior algebra of a free A-module of rank n, where A is the T-equivariant cohomology of a point.
SANTIAGO T. +2 more
core +4 more sources
Crystal approach to affine Schubert calculus [PDF]
We apply crystal theory to affine Schubert calculus, Gromov-Witten invariants for the complete flag manifold, and the positroid stratification of the positive Grassmannian.
Jennifer Morse +3 more
core +8 more sources
Numerical Schubert Calculus by the Pieri Homotopy Algorithm [PDF]
Based on Pieri's formula on Schubert varieties, the Pieri homotopy algorithm was first proposed by Huber, Sottile, and Sturmfels [J. Symbolic Comput., 26 (1998), pp.
Li, Tien-yien; Wang, Xiaoshen; 吳孟年; Wu, Meng-nien
core +3 more sources
Probabilistic Schubert Calculus: Asymptotics [PDF]
AbstractIn the recent paper Bürgisser and Lerario (Journal für die reine und angewandte Mathematik (Crelles J), 2016) introduced a geometric framework for a probabilistic study of real Schubert Problems. They denoted by $$\delta _{k,n}$$ δ k ,
Lerario, Antonio, Mathis, Léo
openaire +2 more sources
Soergel Calculus and Schubert Calculus [PDF]
We reduce some key calculations of compositions of morphisms between Soergel bimodules ("Soergel calculus") to calculations in the nil Hecke ring ("Schubert calculus"). This formula has several applications in modular representation theory.
He, X., Williamson, G.
openaire +4 more sources
Probabilistic Schubert calculus [PDF]
Abstract We initiate the study of average intersection theory in real Grassmannians. We define the expected degree edeg
Bürgisser, Peter, Lerario, Antonio
openaire +2 more sources
Generalized Permutahedra and Schubert Calculus
We connect generalized permutahedra with Schubert calculus. Thereby, we give sufficient vanishing criteria for Schubert intersection numbers of the flag variety. Our argument utilizes recent developments in the study of Schubitopes, which are Newton polytopes of Schubert polynomials. The resulting tableau test executes in polynomial time.
Avery St. Dizier, Alexander Yong
openaire +3 more sources

