Results 31 to 40 of about 3,252 (223)

Graph embedding discriminant analysis on Grassmannian manifolds for improved image set matching [PDF]

, 2011
A convenient way of dealing with image sets is to represent them as points on Grassmannian manifolds. While several recent studies explored the applicability of discriminant analysis on such manifolds, the conventional formalism of discriminant analysis ...
Shirazi, Sareh, Sareh Shirazi, Lovell, Brian C, Brian C. Lovell, Sanderson, Conrad, Conrad Sanderson, Harandi, Mehrtash T., Lovell, Brian C., Mehrtash T. Harandi, Harandi, Mehrtash T   +9 more
core   +1 more source

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
doaj   +1 more source

Categories for Grassmannian cluster algebras of infinite rank [PDF]

, 2023
We construct Grassmannian categories of infinite rank, providing an infinite analogue of the Grassmannian cluster categories introduced by Jensen, King, and Su.
Schroll, Sibylle, Gratz, Sira, Cheung, Man-Wai, August, Jenny, Faber, Eleonore   +4 more
core   +2 more sources

Biadjoint scalars and associahedra from residues of generalized amplitudes

Journal of High Energy Physics, 2023
In the Grassmannian formulation of the S-matrix for planar N $$ \mathcal{N} $$ = 4 Super Yang-Mills, N k−2 MHV scattering amplitudes for k negative and n − k positive helicity gluons can be expressed, by an application of the global residue theorem, as a
Freddy Cachazo, Nick Early
doaj   +1 more source

Finding Cliques in Projective Space: A Method for Construction of Cyclic Grassmannian Codes

IEEE Access, 2020
In general, the construction of subspace codes or, in particular, cyclic Grassmannian codes in some projective space Pq(n) is highly mathematical and requires substantial computational power for the resulting searches.
Ismael Gutierrez-Garcia, Ivan Molina Naizir   +1 more
doaj   +1 more source

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

Journal 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

Linear Ind-grassmannians [PDF]

Pure and Applied Mathematics Quarterly, 2014
Keywords: Grassmannian, ind-variety, linear morphism of algebraic varieties; Pages no.
Penkov, I., Tikhomirov, A.
openaire   +3 more sources

Branes, quivers, and the affine Grassmannian

, 2023
International audienceBrane systems provide a large class of gauge theories that arise in string theory. This paper demonstrates how such brane systems fit with a somewhat exotic geometric object, called the affine Grassmannian.
Bourget, Antoine, Sperling, Marcus, Grimminger, Julius, Zhong, Zhenghao, Hanany, Amihay   +4 more
core   +1 more source

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
doaj   +1 more source

Graßmannian integrals as matrix models for non-compact Yangian invariants

Nuclear 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, Yumi Ko, Matthias Staudacher   +2 more
doaj   +1 more source