Results 41 to 50 of about 25,301 (182)

Discrete Wilson Lines in F-Theory

open access: yesAdvances in High Energy Physics, 2011
F-theory models are constructed where the 7 -brane has a nontrivial fundamental group. The base manifolds used are a toric Fano variety and a smooth toric threefold coming from a reflexive polyhedron.
Volker Braun
doaj   +1 more source

The variety of reductions for a reductive symmetric pair

open access: yes, 2010
We define and study the variety of reductions for a reductive symmetric pair (G,theta), which is the natural compactification of the set of the Cartan subspaces of the symmetric pair.
Grünewald, Michaël Le Barbier
core   +1 more source

Telemedicine in epilepsy care: A Nationwide survey by the Italian Chapter of the International League Against Epilepsy (LICE) on adoption, barriers, and perceived value

open access: yesEpilepsia Open, EarlyView.
Abstract Objective Telemedicine can improve access and continuity of care for people with epilepsy (PwE), but its adoption across Italian epilepsy centers remains inadequately characterized. We conducted a nationwide cross‐sectional survey of all 75 epilepsy centers certified by the Italian Chapter of the International League Against Epilepsy (Lega ...
Francesco Brigo   +10 more
wiley   +1 more source

A decomposition theorem for $\mathbb{Q}$-Fano Kähler–Einstein varieties

open access: yesComptes Rendus. Mathématique
Let $X$ be a $\mathbb{Q}$-Fano variety admitting a Kähler–Einstein metric. We prove that up to a finite quasi-étale cover, $X$ splits isometrically as a product of Kähler–Einstein $\mathbb{Q}$-Fano varieties whose tangent sheaf is stable with respect to ...
Druel, Stéphane   +2 more
doaj   +1 more source

Complete toric varieties with reductive automorphism group

open access: yes, 2004
We give equivalent and sufficient criteria for the automorphism group of a complete toric variety, respectively a Gorenstein toric Fano variety, to be reductive.
Nill, Benjamin
core   +1 more source

Fano varieties with many selfmaps

open access: yesAdvances in Mathematics, 2008
short version, 19 pages, to appear in Advances in ...
openaire   +4 more sources

Long‐Range Exciton Energy Transfer in Two‐Dimensional Materials

open access: yesLaser &Photonics Reviews, EarlyView.
This review highlights recent advances in long‐range exciton energy transfer within planar 2D‐material architectures. It emphasizes the emergence of self‐hybridized excitonpolaritons, exciton coupling to surface plasmon polaritons and plasmonic lattices, and the role of dipoledipole transfer pathways in enabling efficient nanoscale energy transport ...
Paul H. Bittorf   +8 more
wiley   +1 more source

Fano varieties of cubic fourfolds containing a plane

open access: yes, 2011
We prove that the Fano variety of lines of a generic cubic fourfold containing a plane is isomorphic to a moduli space of twisted stable complexes on a K3 surface.
Macri, Emanuele, Stellari, Paolo
core   +1 more source

Ultralow‐Backscattering Induced Mode Splitting in Chipscale Valley Photonic Topological Cavities

open access: yesLaser &Photonics Reviews, EarlyView.
The proposed in‐situ metrology based on mode splitting quantifies the ultralow backscattering of topological valley edge states at a single sharp corner, demonstrating near‐lossless topological transport (0.09 dB/corner) on a silicon chip. This work provides insight into the robustness of the photonic valley system and shows the great potential of ...
Kaiji Chen   +5 more
wiley   +1 more source

Ultra-narrow Band Fano Resonance-Based All-Dielectric Optical Absorber Using Silica–Silicon Metamaterials

open access: yesElectrica
In this paper, an optical reflector is designed based on an all-dielectric metamaterial comprising silicon double bars with bent arms positioned on the surface of a silica layer.
Ali Akbar Mashkour   +3 more
doaj   +1 more source

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