4 citations · 7 across the 2 of their papers we have counts for
2 papers
math-ph2007★ 4 cited
On the large N expansion in hyperbolic sigma-models
Max Niedermaier, Erhard Seiler
Invariant correlation functions for hyperbolic sigma-models are investigated. The existence of a large asymptotic expansion is proven on finite lattices of dime…
hep-th2007★ 3 cited
Noncompact sigma-models: Large N expansion and thermodynamic limit
A. Duncan, M. Niedermaier, P. Weisz
Noncompact SO(1,N) sigma-models are studied in terms of their large N expansion in a lattice formulation in dimensions d \geq 2. Explicit results for the spin and current two-point…