The aim of this journal is to publish papers in mathematical physics and related areas that are of the highest quality. Research papers and review articles are selected through the normal refereeing process, overseen by an editorial board. The research subjects are primarily on mathematical physics; but this should not be interpreted as a limitation, as the editors feel that essentially all subjects of mathematics and physics are in principle relevant to mathematical physics.

Contents: Vol. 5: Lower Bounds on Wave Packet Propagation by Packing Dimensions of Spectral Measures (I Guarneri & H Schulz-Baldes); Eigenvalue Asymptotics for the Dirac Operator in Strong Constant Magnetic Fields (G D Raikov); Propagating Edge States for a Magnetic Hamiltonian (S De Bi?vre & J V Pul?); On a Conjecture for the Critical Behaviour of KAM Tori (F Bonetto & G Gentile); Local Perturbations of Energy and Kac's Return Time Theorem (Y Lacroix); Stability of the Brown-Ravenhall Operator (G Hoever & H Siedentop); Vol. 6: Construction of the Renormalized GN2 -e Trajectory (M Salmhofer & Chr Wieczerkowski); Families of Whiskered Tori for a Priori Stable/Unstable Hamiltonian Systems and Construction of Unstable Orbits (E Valdinoci); Computer-Assisted Proofs for Fixed Point Problems in Sobolev Spaces (A Schenkel et al.); Degenerate Space-Time Paths and the Non-Locality of Quantum Mechanics in a Clifford Substructure of Space-Time (K Borchsenius); Periodic Orbits of Renormalisation for the Correlations of Strange Nonchaotic Attractors (B D Mestel & A H Osbaldestin); Circle Packing in the Hyperbolic Plane (L Bowen).