%0 Journal Article %T Negative solutions to three-dimensional monomial Noether problem %A Aiichi Yamasaki %J Mathematics %D 2009 %I arXiv %X Three-dimensional monomial Noether problem can have negative solutions for 8 groups by the suitable choice of the coefficients. We find the necessary and sufficient condition for the coefficients to have a negative solution. The results are obtained by two criteria of irrationality using Galois cohomology. %U http://arxiv.org/abs/0909.0586v2