Results 111 to 120 of about 3,252 (223)

The compatible Grassmannian [PDF]

open access: yes, 2019
Let A be a positive injective operator in a Hilbert space (H,〈{dot operator},{dot operator}〉), and denote by [ {dot operator}, {dot operator} ] the inner product defined by A: [f, g] = 〈A f, g〉.
Di Iorio y Lucero, M. E.   +2 more
core  

Geometric Properties of Grassmannian Frames for and

open access: yesEURASIP Journal on Advances in Signal Processing, 2006
Grassmannian frames are frames satisfying a min-max correlation criterion. We translate a geometrically intuitive approach for two- and three-dimensional Euclidean space ( and ) into a new analytic method which is used to classify many Grassmannian ...
Benedetto John J, Kolesar Joseph D
doaj   +1 more source

The automorphism group of the quantum grassmannian [PDF]

open access: yes
The automorphism group of a quantised coordinate algebra is usually much smaller than that of its classical counterpart. Nevertheless, these automorphism groups are often very difficult to calculate.
Lenagan, T.H.   +3 more
core   +1 more source

Grassmannian and String Theory [PDF]

open access: yesCommunications in Mathematical Physics, 1998
Infinite-dimensional Grassmannian manifold contains moduli spaces of Riemann surfaces of all genera. This well known fact leads to a conjecture that non-perturbative string theory can be formulated in terms of Grassmannian. We present new facts supporting this hypothesis.
openaire   +3 more sources

On the Sato-Segal-Wilson Grassmannian and the infinite Grassmannian of type I+,-

open access: yes, 2015
In this thesis, we present the Sato-Segal-Wilson Grassmannian and its dual, the infinite Grassmannian of type I+,−. We provide detailed proofs that they are infinite dimensional complex manifolds and Hermitian symmetric spaces. By doing so, we tie up some
Lau, Alvin Lap Ming
core  

On Derived Categories of Generalized Grassmannian Flips

open access: yes, 2023
In this paper, we construct and classify a new family of flips, called generalized Grassmannian flips, by generalizing the construction of standard flips for $\mathbb{P}^m\times \mathbb{P}^n$ to any generalized Grassmannian $G/P$, where $P$ is a maximal ...
Leung, Naichung Conan, Xie, Ying
core  

Grassmannian and flag sigma models on interval: phase structure and L-dependence

open access: yesJournal of High Energy Physics, 2019
We discuss the two-dimensional Grassmannian SU(N)/S(U(N − 2) × U(2)) and the flag SU(N )/S(U(N − 2) × U(1) × U(1)) sigma models on a finite interval and construct analytical solutions of gap equations in the large-N limit.
D. Pavshinkin
doaj   +1 more source

Graßmannian integrals in Minkowski signature, amplitudes, and integrability

open access: yesJournal of High Energy Physics, 2019
We attempt to systematically derive tree-level scattering amplitudes in fourdimensional, planar, maximally supersymmetric Yang-Mills theory from integrability.
Nils Kanning, Matthias Staudacher
doaj   +1 more source

Linear embeddings of grassmannians and ind-grassmannians

open access: yes
By a grassmannian we understand a usual complex grassmannian or possibly an orthogonal or symplectic grassmannian. We classify, with few exceptions, linear embeddings of grassmannians into larger grassmannians, where the linearity requirement is the condition that the embedding induces an isomorphism on Picard groups.
Penkov, Ivan, Tsanov, Valdemar
openaire   +2 more sources

Polar Grassmannians and their Codes

open access: yesCoRR, 2015
This is a copy of the Extended Abstract accepted for presentation at MEGA2015 in ...
Ilaria Cardinali, Luca Giuzzi
openaire   +2 more sources

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