2 papers
cond-mat.stat-mech2005
Variational principle and phase space measure in non-canonical coordinates
Alessandro Sergi
Non-canonical equations of motion are derived from a variational principle written in symplectic form. The invariant measure of phase space and the covariant expression for the ent…
cond-mat.stat-mech2005
Phase space flows for non-Hamiltonian systems with constraints
Alessandro Sergi
In this paper, non-Hamiltonian systems with holonomic constraints are treated by a generalization of Dirac's formalism. Non-Hamiltonian phase space flows can be described by genera…