We construct the BRST operator for non-critical W3-strings and discuss the tachyon-like spectrum. For N-punctured spheres with N≤5 we briefly describe a formal definition of the integral over W3-moduli space.
@article{arxiv.hep-th/9207067,
title = {A BRST Operator for non-critical W-Strings},
author = {M. Bershadsky and W. Lerche and D. Nemeschansky and N. P. Warner},
journal= {arXiv preprint arXiv:hep-th/9207067},
year = {2009}
}