Commuting Operators and Separation of Variables for Laplacians of Projectively Equivalent Metrics Vladimir S. Matveev OriginalPaper Pages: 193 - 201
A Supercoherent State and a New Inhomogeneous Differential Realization of the SPL(2,1) Superalgebra Yong-Qing Chen OriginalPaper Pages: 203 - 212
On the Ordering of Energy Levels in Homogeneous Magnetic Fields Bernhard BaumgartnerRobert Seiringer OriginalPaper Pages: 213 - 226
The Hopf Algebra Structure of Connes and Kreimer in Epstein–Glaser Renormalization G. Pinter OriginalPaper Pages: 227 - 233