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math-ph2011
Fluids in Weyl Geometries
L. Fatibene, M. Francaviglia
We shall investigate the consequences of non-trivial Weyl geometries on conservation laws of a fluid. In particular we shall obtain a set of properties which allow to obtain in thi…
math-ph2011★ 1 cited
About Boundary Terms in Higher Order Theories
L. Fatibene, M. Francaviglia, S. Mercadante
It is shown that when in a higher order variational principle one fixes fields at the boundary leaving the field derivatives unconstrained, then the variational principle (in parti…