29 papers
Multilevel Isogeometric Projection Stabilization via Quasi-Interpolation for Advection-Dominated Problems
Zakaria El Hasnaoui, Ahmed Ratnani
This paper presents a novel multilevel projection-based stabilization method for advection-dominated convection--diffusion problems within the framework of Isogeometric Analysis. T…
Constraining gamma-ray burst parameters with the first ultra-high energy neutrino event KM3-230213A
KM3NeT Collaboration, O. Adriani, A. Albert +278
Context: The detection of the highest energy neutrino observed to date by KM3NeT, with an estimated energy of 220 PeV, opens up new possibilities for the study and identification o…
Backward problem for a degenerate viscous Hamilton-Jacobi equation: stability and numerical identification
S. E. Chorfi, A. Habbal, M. Jahid +2
This work is devoted to the analysis of the backward problem for a viscous Hamilton-Jacobi equation with degenerate diffusion and a general Hamiltonian that is not necessarily quad…
Atmospheric neutrino constraints on Lorentz invariance violation with the first six detection units of KM3NeT/ORCA
KM3NeT Collaboration, O. Adriani, A. Albert +294
Lorentz invariance is a fundamental symmetry underlying both the Standard Model of particle physics and General Relativity. Testing its validity provides a direct means of searchin…
Block Schwarz methods and preconditioning strategies using Generalized locally Toeplitz tools - part I: analysis of the preconditioners and numerical validation
Abdessadek Rifqui, Ahmed Ratnani, Stefano Serra-Capizzano
In the current work we present a spectral analysis of the additive and multiplicative Schwarz methods within the framework of domain decomposition techniques, by investigating the…
Optimizing the potential of KM3NeT in detecting core-collapse supernovae
KM3NeT Collaboration, O. Adriani, A. Albert +285
Core-collapse supernovae mark the end of life of massive stars. However, despite their importance in astrophysics, their underlying mechanisms remain unclear. Neutrinos that emerge…