Instantaneous Shrinking of Supports for Nonlinear Absorption-Convection Equations

As the second part of the study on support analysis for solutions of nonlinear reaction-convection equations, the case of convection versus absorption is considered. Competition between absorption and singular flux leads to appearance of more than one interface. Sufficient and necessary conditions for occurrance of instantaneous shrinking of supports, from both left side and right side, are established. A typical example is given as an illustration of the results.