86 citations · 570 across the 32 of their papers we have counts for
5 papers · 1 filter
On-shell symmetries
L. Fatibene, M. Ferraris, M. Francaviglia
We define on-shell symmetries and characterize them for Lagrangian systems. The terms appearing in the variation of the Poincare'-Cartan form, which vanish because of field equatio…
Solutions of all one-dimensional wave equations with time independent potential and separable variables
Marco Ferraris, Alessandro D. A. M. Spallicci
Exact solutions, in terms of special functions, of all wave equations , characterised by eight inequivalent time independent potentials and by vari…
Conserved Quantities from the Equations of Motion (with applications to natural and gauge natural theories of gravitation)
M. Ferraris, M. Francaviglia, M. Raiteri
We present an alternative field theoretical approach to the definition of conserved quantities, based directly on the field equations content of a Lagrangian theory (in the standar…
A covariant formalism for Chern-Simons gravity
A. Borowiec, M. Ferraris, M. Francaviglia
Chern--Simons type Lagrangians in dimensions are analyzed from the point of view of their covariance and globality. We use the transgression formula to find out a new fully c…
Conservation laws for non global Lagrangians
A. Borowiec, M. Ferraris, M. Francaviglia +1
In the Lagrangian framework for symmetries and conservation laws of field theories, we investigate globality properties of conserved currents associated with non-global Lagrangians…