• A debt behaviour model

      Zhang, W (arXiv.org, 2014)
      A stochastic model with hidden discrete Markov processes is constructed to understand the behavior of debtors.
    • Curvature dependence of propagating velocity for a simplified calcium model

      Zhang, W (arXiv.org, 2014)
      It is known that curvature relation plays a key role in the propagation of two-dimensional waves in an excitable model. Such a relation is believed to obey the eikonal equation for typical excitable models (e.g., the ...