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TableĀ 1 Symbols and their meanings of system (2.4)

From: Partial differential equation modeling with Dirichlet boundary conditions on social networks

Parameters Meaning
d(t) The popularity of information which promotes the spread of the information
r(t) The intrinsic growth rate of influenced users with the same distance
b The carrying capacity which is the maximum possible density of users
a The intra-specific competition rate with influenced users at a given distance