The yielding transition of amorphous materials is studied with a two-dimensional Hamiltonian model that allows both shear and volume deformations. investigated as function the relative value bulk modulus $B$ respect to $\mu$. When ratio $B/\mu$ small enough, becomes discontinuous, yet reversible. If system driven at constant strain rate in coexistence region, spatially localized band observed w...

We consider (n + m + 1) dimensional bulk spacetime, containing flat (n + m 1) dimensional parallel branes, with topology R ×Tm. We assume that the graviton and an m-form field are the only bulk fields and that the m-form field has non vanishing components along the T directions only. We then find that the m-form field, with suitable bulk and brane potentials, can stabilise the radion modulus at...