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4 papers · 2 filters
Double Scaling Limits and Catastrophes of the zerodimensional O(N) Vector Sigma Model: The A-Series
Werner Ruehl
We evaluate the partition functions in the neighbourhood of catastrophes by saddle point integration and express them in terms of generalized Airy functions.
On the Schwinger-Dyson Equations for a Vertex Model Coupled to 2D Gravity
Al. Kavalov
We consider a two matrix model with gaussian interaction involving the term , which is quartic in angular variables. It describes a vertex model (in particular case - of F…
Singular Vectors of Algebras via DS Reduction of
P. Furlan, A. Ch. Ganchev, V. B. Petkova
The BRST quantisation of the Drinfeld - Sokolov reduction applied to the case of is explored to construct in an unified and systematic way the general singular vector…
The critical O() -model at dimension : Hardy-Ramanujan distribution of quasi-primary fields and a collective fusion approach
Klaus Lang, Werner Ruehl
The distribution of quasiprimary fields of fixed classes characterized by their O representations and the number of vector fields from which they are composed at $N=\i…