Results 61 to 70 of about 36,312 (298)

Solitons for the coupled matrix nonlinear Schrödinger-type equations and the related Schrödinger flow

Open Mathematics, 2023
In this article, the coupled matrix nonlinear Schrödinger (NLS) type equations are gauge equivalent to the equation of Schrödinger flow from R1{{\mathbb{R}}}^{1} to complex Grassmannian manifold G˜n,k=GL(n,C)∕GL(k,C)×GL(n−k,C),{\widetilde{G}}_{n,k}={\rm ...
Zhong Shiping, Zhao Zehui, Wan Xinjie
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Action Recognition via Adaptive Semi-Supervised Feature Analysis

Applied Sciences, 2023
This study presents a new semi-supervised action recognition method via adaptive feature analysis. We assume that action videos can be regarded as data points in embedding manifold subspace, and their matching problem can be quantified through a specific
Zengmin Xu, Xiangli Li, Jiaofen Li, Huafeng Chen, Ruimin Hu   +4 more
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Curves in Grassmannians [PDF]

Transactions of the American Mathematical Society, 1995
Curves in Grassmannians are analyzed using the special structure of the tangent bundle of a Grassmannian, resulting in a theory of inflections or Weierstrass behavior. A duality theorem is established, generalizing the classical duality theorem for projective plane curves.
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Grassmannian spectral shooting [PDF]

Mathematics of Computation, 2010
32 pages, 17 ...
Ledoux, Veerle, Malham, Simon JA, Thümmler, Vera   +2 more
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Weights of the $\mathbb{F}_{q}$-forms of $2$-step splitting trivectors of rank $8$ over a finite field

Karpatsʹkì Matematičnì Publìkacìï, 2019
Grassmann codes are linear codes associated with the Grassmann variety $G(\ell,m)$ of $\ell$-dimensional subspaces of an $m$ dimensional vector space $\mathbb{F}_{q}^{m}.$ They were studied by Nogin for general $q.$ These codes are conveniently described
M.A. Rakdi, N. Midoune
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A bound on Grassmannian codes [PDF]

2006 IEEE International Symposium on Information Theory, 2006
We give a new asymptotic upper bound on the size of a code in the Grassmannian space. The bound is better than the upper bounds known previously in the entire range of distances except very large values.
BargAlexander, NoginDmitry
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Hilbert space structure and classical limit of the low energy sector of U(N) quantum Hall ferromagnets

SciPost Physics Proceedings, 2023
Using the Lieb–Mattis ordering theorem of electronic energy levels, we identify and construct the Hilbert space of the low energy sector of U(N) quantum Hall/Heisenberg ferromagnets at filling factor M for L Landau/lattice sites.
Manuel Calixto, Alberto Mayorgas, Julio Guerrero
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Braid group symmetries of Grassmannian cluster algebras [PDF]

Selecta Mathematica, 2017
Let Gr∘(k,n)⊂Gr(k,n)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{\,\
C. Fraser
semanticscholar   +1 more source

Moduli Spaces and Grassmannian [PDF]

Letters in Mathematical Physics, 2013
We calculate the homomorphism of the cohomology induced by the Krichever map of moduli spaces of curves into infinite-dimensional Grassmannian. This calculation can be used to compute the homology classes of cycles on moduli spaces of curves that are defined in terms of Weierstrass points.
Liou, J., Schwarz, A.
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GLSMs for exotic Grassmannians [PDF]

Journal of High Energy Physics, 2020
Abstract In this paper we explore nonabelian gauged linear sigma models (GLSMs) for symplectic and orthogonal Grassmannians and flag manifolds, checking e.g. global symmetries, Witten indices, and Calabi-Yau conditions, following up a proposal in the math community.
Wei Gu, Eric Sharpe, Hao Zou
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