Preprint C22/2003
Regularity properties of the diffusion coefficient for a mean zero exclusion process

Raquel Mariela Sued

**Keywords: **
Mean zero exclusion process | regularity of the diffusion coefficient

The asymmetric mean zero simple exclusion process is an example of non-reversible nongradient system. We prove that the diffusion coefficient of its hydrodynamic equation is a $C^\infty$ function on $(0,1)$ and continuous at the boundary.