In this thesis, we study some problems on the Navier-Stokes equations and Boltzmann- Enskog equation which are in the active research area of applied mathematics. The system of Navier-Stokes equations is a typical example of the conservation laws. In the first part of the thesis, we study the global existence and convergence rates of solutions to the three-dimensional compressible Navier-Stokes equations without heat conductivity.
Title: The effect of task structure and time structure on convergence activities using group support systems Group support systems have been developed and are useful for generating many ideas in a short time span, however, the ability of groups to converge on the most worthy ideas has been generally neglected in the research literature. Thus, [...]