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Clustering is one of the most important unsupervised learning problems and it consists of finding a common
structure in a collection of unlabeled data. However, due to the ill-posed nature of the problem, different
runs of the same clustering algorithm applied to the same data-set usually produce… |
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The Global Navigation Satellite System (GNSS) meteorology contribution to the comprehension of the Earth's atmosphere's global and regional variations is essential. In GNSS processing, the zenith wet delay is obtained using the difference between the zenith total delay and the zenith hydrostatic… |
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Numerical simulations of vesicle suspensions are performed in two dimensions to study their dynamical and rheological properties.
An hybrid method is adopted, which combines a mesoscopic approach for the solvent with a curvature-elasticity model for the
membrane. Shear flow is induced by two… |
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For a four-stream approximation of the kinetic model of radiative transfer with isotropic scattering, a numerical scheme endowed with both truly 2D well-balanced and diffusive asymptotic-preserving properties is derived, in the same spirit as what was done in [L. Gosse and G. Toscani, C. R. Math.… |
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We study the behavior of massless Dirac particles in the vacuum C-metric spacetime, representing the nonlinear superposition of the Schwarzschild black hole solution and the Rindler flat spacetime associated with uniformly accelerated observers. Under certain conditions, the C-metric can be… |
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The de Rham Laplacian $\Delta_{\rm (dR)}$ for differential forms is a geometric generalization of the usual covariant Laplacian $\Delta$, and it may be extended naturally to
tensor-valued $p$-forms using the exterior covariant derivative associated with a metric connection. Using it the wave… |
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This work presents a microscale approach for simulating the dielectrophoresis assembly of polarizable particles under an external electric field. The model is shown to capture interesting dynamical and topological features, such as the formation of chains of particles and their incipient… |
