We review the canonical theory for perfect fluids in Euler's and Lagrange's formulations. The
theory is related to a description of extended structures in higher dimensions. Internal …

Unification of dark matter and dark energy: the inhomogeneous Chaplygin gas -
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The effective theory of the Anton-Schmidt cosmic fluid within the Debye approximation is
investigated. In this picture, the Universe is modeled out by means of a medium without …

A bstract We explore the cosmological dynamics of a minimalistic yet generic string-inspired
model for multifield dark energy. Adopting a supergravity four-dimensional viewpoint, we …

In these lectures, most of them given at the University of Montreal while he held the
Aisenstadt Chair, Roman Jackiw provides a view of fluid dynamics from an entirely novel …

We determine the k-essence Lagrangian of a relativistic barotropic fluid. The equation of
state of the fluid can be specified in different manners depending on whether the pressure is …

Equations of fluid mechanics with N=1 Schrödinger supersymmetry - ScienceDirect Skip to
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The generalized Chaplygin gas is usually defined as a barotropic perfect fluid with an
equation of state p=-A ρ-α, where ρ and p are the proper energy density and pressure …

After a brief introduction to standard cosmology and the dark matter problem in the Universe,
we consider a self-gravitating noninteracting fermion gas at nonzero temperature as a model …

We construct the N= 1 supersymmetric extension of the polytropic gas dynamics. We give
both the Lagrangian as well as the Hamiltonian description of this system. We construct the …