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\title{Free field representation by Michael Lashkevich}

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A representation of some algebra in terms of a Heisenberg algebra. Also a representation of some function defined axiomatically, algebraically or combinatorially in terms of matrix elements or traces of some operator in a Fock representation of a Heisenberg algebra

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\bibitem{Dotsenko:1984nm} V.~S.~Dotsenko and V.~A.~Fateev, Conformal Algebra and Multipoint Correlation Functions in Two-Dimensional Statistical Models, Nucl.\ Phys.\ {\bf B240} (1984) 312
\bibitem{Drinfeld:1987sy} V.~G.~Drinfeld, A New realization of Yangians and quantized affine algebras, Sov.\ Math.\ Dokl.\  {\bf 36} (1988) 212.
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