On the shape of bruhat intervals
WebA standard barely set-valued tableau of shape λ is a filling of the Young diagram λ with integers 1, 2, …, λ + 1 such that the integers are increasing in each row and column, and every cell contains one integer except one cell that contains two integers. Counting standard barely set-valued tableaux is closely related to the coincidental down-degree … http://emis.maths.adelaide.edu.au/journals/SLC/wpapers/s61vortrag/bjoerner.pdf
On the shape of bruhat intervals
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WebA Bruhat interval polytope Qv,w is toric if and only if every subin-terval [x,y] of [v,w] is realized as a face of Qv,w. The above theorem implies that if Qv,w is toric, then its combinatorial type is determined by the poset structure of [v,w], and hence Qv,w and Qv−1,w−1 are combinatorially equivalent. WebOn the shape of Bruhat intervals By Anders Bjorner and Torsten Ekedahl Abstract Let (W, S) be a crystallographic Coxeter group (this includes all finite and affine Weyl groups), …
WebA Bruhat interval polytope Qv,w is toric if and only if every subin-terval [x,y] of [v,w] is realized as a face of Qv,w. The above theorem implies that if Qv,w is toric, then its … WebA Bruhat interval is a diagram that represents all the different ways you could reverse the order of a collection of objects by only swapping two of them at a time. The KL polynomials tell mathematicians something deep …
Webweak Bruhat interval modules. We prove that this is a natural lift of the Mackey formula due to Bergeron and Li [3], which works for elements of the Grothendieck ring of 0-Hecke … WebWe begin by deriving an action of the -Hecke algebra on standard reverse composition tableaux and use it to discover -Hecke modules whose quasisymmetric characteristics are the natural refinements of Schur functions kn…
Web19 de jun. de 2014 · In this paper we study combinatorial aspects of Bruhat interval polytopes. For example, we give an inequality description and a dimension formula for …
WebAbstract. In this paper, we prove that if the dual of a Bruhat interval in a Weyl group is a zircon, then that interval is rationally smooth. Investigating when the converse holds, and drawing inspiration from conjectures by Delanoy, leads us to pose two conjectures. If true, they imply that for Bruhat intervals in type A, duals of smooth ... list of tax forms and schedulesWebOn the shape of Bruhat intervals ***** EN. English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia … immigration detention center tacoma waWeb× Close. The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. list of tax free items in texasWebOn the shape of Bruhat intervals ***** EN. English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia … immigration detainees searchWebmaximal element. The main result of §3 is that every Bruhat interval [u, w] in W/V is lexicographically shellable (cf. Definition 3.1). From this combinatorial property we deduce that the simplicial complex of chains in a nonempty open Bruhat interval (u,w) of W/V triangulates a sphere or a ball, and is therefore immigration detention centers in texasWebMotivated by the recent discovery of a simple quantization procedure for Schubert polynomials we study the expansion of Schur and Schubert polynomials into standard elementary monomials (SEM). The SEM expansion of Schur polynomials can be described algebraically by a simple variant of the Jacobi–Trudi formula and combinatorially by a … list of tax free bonds in indiaWebArticles with article keyword: Bruhat order. On the shape of Bruhat intervals. Pages 799-817 by Anders Björner , Torsten Ekedahl From volume 170-2. Search for: Online … list of taxicab numbers