The preferred null symmetries of a null electromagnetic field interacting with a null free gravitational field L. RadhakrishnaS. P. Gumaste OriginalPaper Pages: 395 - 406
Inadequacy of hydrodynamical theories of the Aharonov-Bohm effect A. Joseph Zuchelli OriginalPaper Pages: 407 - 415
Infinite conductivity and perfect diamagnetism in type-I superconductors G. Papini OriginalPaper Pages: 417 - 423
Sigma model for Ernst equation: Lax representation, Bäcklund transformation and divergence-free currents E. V. DoktorovA. N. Tarakanov OriginalPaper Pages: 449 - 459
Conserved quantities, invariant forms, and dynamical symmetries Giacomo Caviglia OriginalPaper Pages: 461 - 467
Canonical quantization of 1+1 dimensional gravity Tom BanksLeonard Susskind OriginalPaper Pages: 475 - 496
