742 citations
- Centre National de la Recherche ScientifiqueFR56 papers
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27 papers · 1 filter
Some combinatorial results on smooth permutations
Shoni Gilboa, Erez Lapid
We show that any smooth permutation is characterized by the set of transpositions and -cycles in the Bruhat interval , and that i…
Constraining the magnetic field structure in collisionless relativistic shocks with a radio afterglow polarization upper limit in GW170817
Ramandeep Gill, Jonathan Granot
Gamma-ray burst afterglows arise from relativistic collisionless shocks in which the postshock tangled magnetic field is produced by the two-stream and/or Weibel instabil…
Observing the redshifted 21 cm signal around a bright QSO at
Qing-Bo Ma, Benedetta Ciardi, Koki Kakiichi +3
We use hydrodynamics and radiative transfer simulations to study the 21~cm signal around a bright QSO at . Due to its powerful UV and X-ray radiation, the QSO quickly in…
A Quaternionic Nullstellensatz
Gil Alon, Elad Paran
We prove a Nullstellensatz for the ring of polynomial functions in n non-commuting variables over Hamilton's ring of real quaternions. We also characterize the generalized polynomi…
Covariant Bethe-Salpeter approximation in strongly correlated electron systems model
Zhenhao Fan, Zhipeng Sun, Dingping Li +3
Strongly correlated electron systems are generally described by tight binding lattice Hamiltonians with strong local (on site) interactions, the most popular being the Hubbard mode…
Truncation of Einstein equations through Gravitational Foliation
Merav Hadad
In previous works, we suggested considering a (3+1)D quantum gravitational field as an evolution of a (2+1)D renormalized quantum gravitational field along the direction of the gra…