Results 61 to 70 of about 26,527 (250)
Enumerative Coding for Grassmannian Space [PDF]
, 2010 The Grassmannian space $\Gr$ is the set of all $k-$dimensional subspaces of the vector space~\smash{$\F_q^n$}. Recently, codes in the Grassmannian have found an application in network coding.
Etzion, Tuvi, Silberstein, Natalia
core
Geometric structures on finite- and infinite-dimensional Grassmannians
, 2012 In this paper, we study the Grassmannian of n-dimensional subspaces of a 2n-dimensional vector space and its infinite-dimensional analogues. Such a Grassmannian can be endowed with two binary relations (adjacent and distant), with pencils (lines of the ...
Blunck, Andrea, Havlicek, Hans
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Annalen der Physik, Volume 538, Issue 1, January 2026.The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
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Positivity, Grassmannian geometry and simplex-like structures of scattering amplitudes
Journal of High Energy Physics, 2017 This article revisits and elaborates the significant role of positive geometry of momentum twistor Grassmannian for planar N=4 $$ \mathcal{N}=4 $$ SYM scattering amplitudes.
Junjie Rao
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The Grassmannian for celestial superamplitudes
Journal of High Energy Physics, 2021 Recently, scattering amplitudes in four-dimensional Minkowski spacetime have been interpreted as conformal correlation functions on the two-dimensional celestial sphere, the so-called celestial amplitudes.
Livia Ferro, Robert Moerman
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Spherical blow-ups of Grassmannians and Mori Dream Spaces
, 2017 In this paper we classify weak Fano varieties that can be obtained by blowing-up general points in prime Fano varieties. We also classify spherical blow-ups of Grassmannians in general points, and we compute their effective cone.
Massarenti, Alex, Rischter, Rick
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Fortschritte der Physik, Volume 74, Issue 1, January 2026.Abstract In this article I consider type II superstring in the pure spinor formulation with constant background fields in the context of T‐dualization. First, I prove that bosonic and fermionic T‐dualization commute using already known T‐dual transformation laws for bosonic and fermionic T‐dualization.
B. Nikolić
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FINITE GRASSMANNIAN GEOMETRIES
Demonstratio Mathematica, 2001 The author studies geometries in a vector space \(V \cong {\mathbb F}_{q}^{n}\) with odd \(q\) which is provided with a non-degenerate bilinear form \(\xi\). The set \(\{U \leq V \mid \dim U = k\}\) is denoted by \({\mathfrak L}_k(V)\). The Grassmann space \({\mathbb G}_{k,m}(V)\) is the incidence structure \(({\mathfrak L}_k(V),{\mathfrak L}_m(V),\leq)
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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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