Below is the ascii version of the abstract for 93-62.
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Improved Lower Bound on the Thermodynamic Pressure
of the Spin 1/2 Heisenberg Ferromagnet
ABSTRACT. We introduce a new stochastic representation of the
partition function of the spin 1/2 Heisenberg ferromagnet. We
express some of the relevant thermodynamic quantities
in terms of expectations of functionals of so called
random stirrings on $\Bbb Z^d$. By use of this
representation we improve the lower bound on the
pressure given by Conlon and Solovej in [CS2].