2 papers
hep-th1998
Reparametrization Invariance as Gauge Symmetry
G. Fulop, D. M. Gitman, I. V. Tyutin
Reparametrization invariance being treated as a gauge symmetry shows some specific peculiarities. We study these peculiarities both from a general point of view and on concrete exa…
hep-th1993
Path Integrals over Velocities in Quantum Mechanics
D. M. Gitman, Sh. M. Shvartsman
Representations of propagators by means of path integrals over velocities are discussed both in nonrelativistic and relativistic quantum mechanics. It is shown that all the propaga…