Gravity can accelerate the homogenization of space-time as the universe evolves. The temporal evolution of the universe, from the Big Bang to the present, is described by Einstein's field equations of ...
Astronomers from the UNIGE have observed the composition of the gases in our galaxy and have shown that, contrary to the models established until now, they are not homogeneously mixed. In order to ...
Let G be a real Lie group, Λ be a lattice in G and Γ be a compactly generated closed subgroup of G. If the Zariski closure of the group Ad(Γ) is semisimple with no compact factor, we prove that every ...
The notions of Poisson Lie group and Poisson homogeneous space are extended to the Dirac category. The theorem of Drinfeld on the one-to-one correspondence between Poisson homogeneous spaces of a ...
§ 10. NOW, suppose any one pair of the tetrahedrons to be taken away from their positions in the primitive parallelepiped, arid, by purely translational motion, to be brought into position with their ...
The Nature Index 2024 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...
Clouds and streams of cosmic pristine gas (magenta) accrete onto the Milky Way, but this gas does not efficiently mix in the Galactic disk, as highlighted for the ...
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