Results 41 to 50 of about 36,312 (298)

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

open access: yesIEEE 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   +1 more
doaj   +1 more source

Ising model and the positive orthogonal Grassmannian [PDF]

open access: yesDuke mathematical journal, 2018
We completely describe by inequalities the set of boundary correlation matrices of planar Ising networks embedded in a disk. Specifically, we build on a recent result of M.~Lis to give a simple bijection between such correlation matrices and points in ...
Pavel Galashin, P. Pylyavskyy
semanticscholar   +1 more source

Applying parabolic Peterson: affine algebras and the quantum cohomology of the Grassmannian [PDF]

open access: yes, 2019
The Peterson isomorphism relates the homology of the affine Grassmannian to the quantum cohomology of any flag variety. In the case of a partial flag, Peterson’s map is only a surjection, and one needs to quotient by a suitable ideal on the affine side ...
Cookmeyer, J., Milićević, E.
core   +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 Hai-bao
openaire   +3 more sources

On the Variety of Paths on Complete Intersections in Grassmannians

open access: yesМоделирование и анализ информационных систем, 2014
In this article we study the Fano variety of lines on the complete intersection of the grassmannian G(n, 2n) with hypersurfaces of degrees d1 ..., di . A length l path on such a variety is a connected curve composed of l lines.
S. M. Yermakova
doaj   +1 more source

Projectivity of the Witt vector affine Grassmannian [PDF]

open access: yesInventiones Mathematicae, 2015
We prove that the Witt vector affine Grassmannian, which parametrizes W(k)-lattices in $$W(k)[\frac{1}{p}]^n$$W(k)[1p]n for a perfect field k of characteristic p, is representable by an ind-(perfect scheme) over k.
B. Bhatt, P. Scholze
semanticscholar   +1 more source

Fractional Supersymmetry [PDF]

open access: yes, 1994
A Symmetry between bosonic coordinates and some Grassmannian-type coordinates is presented. Commuting two of these Grassmannian-type variables results in an arbitrary phase (not just a minus sign). This symmetry is also realised at the level of the field
Mohammedi, Noureddine
core   +2 more sources

Grassmannian and string theory [PDF]

open access: yes, 1996
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.
Schwarz, Albert
core   +2 more sources

Grassmannians and representations

open access: yesJournal of Commutative Algebra, 2009
In this note we use Bott-Borel-Weil theory to compute cohomology of interesting vector bundles on sequences of Grassmanians.
Edidin, D., Francisco, C. A.
openaire   +4 more sources

Linear Ind-grassmannians [PDF]

open access: yesPure and Applied Mathematics Quarterly, 2014
Keywords: Grassmannian, ind-variety, linear morphism of algebraic varieties; Pages no.
Penkov, I., Tikhomirov, A.
openaire   +4 more sources

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