320 citations
- International Solvay InstitutesBE18 papers
- European Southern ObservatoryCL9 papers
- Université Libre de BruxellesBE9 papers
- Imperial College LondonGB5 papers
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16 papers · 1 filter
The Computational Power of the W and GHZ states
Ellie D'Hondt, Prakash Panangaden
It is well understood that the use of quantum entanglement significantly enhances the computational power of systems. Much of the attention has focused on Bell states and their mul…
Self-Organizing Traffic Lights
Carlos Gershenson
Steering traffic in cities is a very complex task, since improving efficiency involves the coordination of many actors. Traditional approaches attempt to optimize traffic lights fo…
The relative Picard group of a comodule algebra and Harrison cohomology
S. Caenepeel, T. Guedenon
Let be a commutative comodule algebra over a commutative bialgebra . The group of invertible relative Hopf modules maps to the Picard group of , and the kernel is describ…
A categorical approach to Turaev's Hopf group-coalgebras
S. Caenepeel, M. De Lombaerde
We show that Turaev's group-coalgebras and Hopf group-coalgebras are coalgebras and Hopf algebras in a symmetric monoidal category, which we call the Turaev category. A similar res…
Simultaneous Doppler maps of IP Peg in outburst
C. Papadaki, H. M. J. Boffin, D. Steeghs
IP Pegasi is an eclipsing dwarf nova lying above the period gap with an orbital period of 3.8h. It is the first cataclysmic variable to show evidence of spiral arms in its accretio…
Local units versus local projectivity. Dualisations: Corings with local structure maps
Joost Vercruysse
We unify and generalize different notions of local units and local projectivity. We investigate the connection between these properties by constructing elementary algebras from loc…