The Third Virial Coefficient of Free Anyons
  We use a path integral representation for the partition function of non-interacting anyons confined in a harmonic oscillator potential in order to prove that the third virial coefficient of free anyons is finite, and to calculate it numerically. Our results together with previously known results are consistent with a rapidly converging Fourier series in the statistics angle. 
Jan Myrheim and K{\aa}re Olaussen