Results 31 to 40 of about 464,627 (312)

A program for finding all KMS states on the Toeplitz algebra of a higher-rank graph [PDF]

open access: yesJournal of operator theory, 2018
The Toeplitz algebra of a finite graph of rank k carries a natural action of the torus Tk, and composing with an embedding of R in Tk gives a dynamics on the Toeplitz algebra.
James Fletcher   +2 more
semanticscholar   +1 more source

A ranking for the nodes of directed graphs based on game theory (Poster Presentation) [PDF]

open access: yesPAMM, 2007
AbstractWe introduce a value that allows us to emphasize the importance of each player in a cooperative game when the cooperation possibilities are limited according to the links of an oriented network. The proposed concept of accessibility tries to conjugate the marginal contributions of each node as a game player with the cooperation geometry imposed
Rafael Amer   +2 more
openaire   +1 more source

FI-flows of 3d N=4 theories

open access: yesJournal of High Energy Physics, 2023
We study the 3d N $$ \mathcal{N} $$ = 4 RG-flows triggered by Fayet-Iliopoulos deformations in unitary quiver theories. These deformations can be implemented by a new quiver algorithm which contains at its heart a problem at the intersection of linear ...
Antoine Bourget   +2 more
doaj   +1 more source

Rank-two 5d SCFTs from M-theory at isolated toric singularities: a systematic study

open access: yesJournal of High Energy Physics, 2020
We carry out a detailed exploration of the deformations of rank-two five-dimensional superconformal field theories (SCFTs) T X $$ {\mathcal{T}}_{\mathbf{X}} $$ , which are geometrically engineered by M-theory on the space transverse to isolated toric ...
Vivek Saxena
doaj   +1 more source

A Fast Terminal Matching Method for Interference Coordination Based on Wavelet Transform and Graph Theory in Ultra-Dense Multi-Cell Scenarios

open access: yesIEEE Access, 2021
The intensive deployment of cells in a wireless communication system may significantly increase the network capacity, but it may cause more complex and severe inter-cell interference.
Junxiang Gou   +4 more
doaj   +1 more source

K-theory for real k-graph C∗-algebras [PDF]

open access: yesAnnals of K-theory, 2021
. We initiate the study of real C ∗ -algebras associated to higher-rank graphs Λ, with a focus on their K -theory. Following Kasparov and Evans, we identify a spectral sequence which computes the CR K -theory of C ∗ R (Λ , γ ) for any involution γ on Λ ...
Jeffrey L. Boersema, E. Gillaspy
semanticscholar   +1 more source

A 5d perspective on the compactifications of 6d SCFTs to 4d N $$ \mathcal{N} $$ = 1 SCFTs

open access: yesJournal of High Energy Physics, 2022
Compactifying 6d superconformal field theories (SCFTs) to 4d N $$ \mathcal{N} $$ = 1 theories on two-punctured spheres (tubes) and tori with flux is realized using duality domain walls in 5d N $$ \mathcal{N} $$ = 1 Kaluza-Klein (KK) theories, which are ...
Evyatar Sabag, Matteo Sacchi
doaj   +1 more source

Systematic planning of moving target defence for maximising detection effectiveness against false data injection attacks in smart grid

open access: yesIET Cyber-Physical Systems, 2021
Moving target defence (MTD) has been gaining traction to thwart false data injection attacks against state estimation (SE) in the power grid. MTD actively perturbs the reactance of transmission lines equipped with distributed flexible AC transmission ...
Bo Liu, Hongyu Wu
doaj   +1 more source

Classical simulation versus universality in measurement based quantum computation [PDF]

open access: yes, 2006
We investigate for which resource states an efficient classical simulation of measurement based quantum computation is possible. We show that the Schmidt--rank width, a measure recently introduced to assess universality of resource states, plays a ...
Briegel, H. J.   +3 more
core   +2 more sources

Fibers add flavor. Part I. Classification of 5d SCFTs, flavor symmetries and BPS states

open access: yesJournal of High Energy Physics, 2019
We propose a graph-based approach to 5d superconformal field theories (SCFTs) based on their realization as M-theory compactifications on singular elliptic Calabi-Yau threefolds.
Fabio Apruzzi   +4 more
doaj   +1 more source

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