Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1994-06-02
Phys.Lett. B335 (1994) 45-50
Physics
High Energy Physics
High Energy Physics - Theory
9 pages, LaTeX
Scientific paper
10.1016/0370-2693(94)91556-3
We show that the Zamolodchikov's and Polyakov-Bershadsky nonlinear algebras $W_3$ and $W_3^{(2)}$ can be embedded as subalgebras into some {\em linear} algebras with finite set of currents. Using these linear algebras we find new field realizations of $W_3^{(2)}$ and $W_3$ which could be a starting point for constructing new versions of $W$-string theories. We also reveal a number of hidden relationships between $W_3$ and $W_3^{(2)}$. We conjecture that similar linear algebras can exist for other $W$-algebras as well.
Krivonos Sergey
Sorin Alexander
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