ar X iv : h ep - t h / 97 10 10 3 v 2 1 8 N ov 1 99 7 VARIOUS SHADES OF BLUE ’ S FUNCTIONS

ar X iv : h ep - e x / 97 11 02 0 v 1 2 6 N ov 1 99 7 CLNS 97 / 1521

ar X iv : h ep - t h / 97 10 10 3 v 1 1 3 O ct 1 99 7 VARIOUS SHADES OF BLUE ’ S FUNCTIONS ∗

We discuss random matrix models in terms of elementary operations on Blue’s functions (functional inverse of Green’s functions). We show that such operations embody the essence of a number of physical phenomena whether at/or away from the critical points. We illustrate these assertions by borrowing on a number of recent results in effective QCD in vacuum and matter. We provide simple physical a...

ar X iv : h ep - t h / 97 11 10 3 v 1 1 4 N ov 1 99 7 Multi - spin correlation functions for the Z - Invariant Ising model

Continuing our work [12], where a explicit formula for the two-point functions of the two dimensional Z-invariant Ising model were found. I obtain here different results for the higher correlation functions and several consistency checks are done.

ar X iv : h ep - e x / 97 11 01 6 v 1 2 1 N ov 1 99 7 Results on Λ 0 Production at HERMES

The production of Λ 0 's at the HERMES experiment is presented. Prospects for the future of Λ measurements at HERMES are discussed.

ar X iv : h ep - t h / 94 10 11 8 v 2 2 2 N ov 1 99 4 WILSON LOOPS , qq̄ and 3 q POTENTIALS , BETHE – SALPETER EQUATION