Topological String Partition Functions as Polynomials
  We investigate the structure of the higher genus topological string amplitudes on the quintic hypersurface. It is shown that the partition functions of the higher genus than one can be expressed as polynomials of five generators. We also compute the explicit polynomial forms of the partition functions for genus 2, 3, and 4. Moreover, some coefficients are written down for all genus. 
Satoshi Yamaguchi, Shing-Tung Yau (Harvard University)