Results 31 to 40 of about 26,527 (250)

On the construction of $ \mathbb Z^n_2- $grassmannians as homogeneous $ \mathbb Z^n_2- $spaces

open access: yesElectronic Research Archive, 2022
In this paper, we construct the $ \mathbb Z^n_2- $grassmannians by gluing of the $ \mathbb Z^n_2- $domains and give an explicit description of the action of the $ \mathbb Z^n_2- $Lie group $ GL(\overrightarrow{\textbf{m}}) $ on the $ \mathbb Z^n_2 ...
Mohammad Mohammadi , Saad Varsaie
doaj   +1 more source

A Family Of Low Density Matrices In Lagrangian–Grassmannian

open access: yesSpecial Matrices, 2018
The aim of this paper is twofold. First, we show a connection between the Lagrangian- Grassmannian variety geometry defined over a finite field with q elements and the q-ary Low-Density Parity- Check codes. Second, considering the Lagrangian-Grassmannian
Carrillo-Pacheco Jesús   +1 more
doaj   +1 more source

Secants of Lagrangian Grassmannians [PDF]

open access: yes, 2010
We study the dimensions of secant varieties of the Grassmannian of Lagrangian subspaces in a symplectic vector space. We calculate these dimensions for third and fourth secant varieties.
Ada Boralevi   +8 more
core   +1 more source

3d N $$ \mathcal{N} $$ = 2 Chern-Simons-matter theory, Bethe ansatz, and quantum K -theory of Grassmannians

open access: yesJournal of High Energy Physics, 2020
We study a correspondence between 3d N $$ \mathcal{N} $$ = 2 topologically twisted Chern-Simons-matter theories on S 1 × Σg and quantum K -theory of Grassmannians.
Kazushi Ueda, Yutaka Yoshida
doaj   +1 more source

Grassmannian trilogarithms

open access: yes, 2000
The paper will appear in Compositio ...
Goncharov, A. B., Zhao, J.
openaire   +2 more sources

Homology rigidity of grassmannians [PDF]

open access: yesActa Mathematica Scientia, 2009
Applying the theory of Gr bner basis to the Schubert presentation of the cohomology of Grassmannians, we extend the homology rigidity results known for the classical Grassmannians to the exceptional cases.
Li, Fang, Duan, Haibao
openaire   +2 more sources

Graßmannian integrals as matrix models for non-compact Yangian invariants

open access: yesNuclear Physics B, 2015
In the past years, there have been tremendous advances in the field of planar N=4 super Yang–Mills scattering amplitudes. At tree-level they were formulated as Graßmannian integrals and were shown to be invariant under the Yangian of the superconformal ...
Nils Kanning   +2 more
doaj   +1 more source

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

open access: yesOpen 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
doaj   +1 more source

Action Recognition via Adaptive Semi-Supervised Feature Analysis

open access: yesApplied 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   +4 more
doaj   +1 more source

The tropical Grassmannian

open access: yesadvg, 2004
Corrected small errors, added new section on characteristic ...
Speyer, David, Sturmfels, Bernd
openaire   +3 more sources

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