Before revision:  Here, we outline a largely analytical method for studying reaction-diffusion models . Using a prototypic model of cell polarization, we characterize protein activation in response to an external stimulus and highlight the importance of phase-space analysis.
After revision:  In this tutorial, we provide a largely analytical method for studying reaction-diffusion models . Using a prototypic model of cell polarization, we characterize protein activation in response to an external stimulus and highlight the importance of phase-space analysis.