TY - JOUR
T1 - Instantaneous Shrinking of Supports for Nonlinear Reaction-convection Equations
AU - Ning Su 
JO - Journal of Partial Differential Equations
VL - 2
SP - 179
EP - 192
PY - 1999
DA - 1999/12
SN - 12
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/jpde/5533.html
KW - Reaction-convection
KW - instantaneous shrinking
KW - propagation property
AB -  Support analysis is performed for solutions of nonlinear reaction-convection equations in which both singular flux and source term are included. The positivity versus instantaneous shrinking for the solutions is determined by the relative strength of the flux and the source, as well as the decay rate at infinity of initial value of solutions. As an application of the analysis, the case of power-type nonlinearities is checked in details.