Abstract: The spherical harmonics expansion is a deterministic alternative to the Monte Carlo method for solving the Boltzmann equation. With the spherical harmonics expansion solver it is possible to ...

Abstract: In this technical note, we consider the cooperative control of multiple agents on a sphere, provide the appropriate attraction-repulsion interactions between agents with introduction of the ...

Scientists have released the first X-ray images of a mysterious, sphere-shaped object recovered in Colombia, which locals claim is of alien origin. The so-called 'UFO' was spotted in March over ...