β Scribed by F Schwabl; W Thirring; J Wess
No coin nor oath required. For personal study only.
In the formulation of the model, special care was given to the definition of t,he current as the product of field operators. It is shown that a product of field operators, where the space-time points coincide, can be defined as the limit of products with the points separated and that the limit exists in the Borchers topology. A consistent definition of the current can be given this way, and the model in which a massive vector field is coupled to this current is solved through an ansatz. The interacting fields can be expressed in terms of free canonical quantities. To avoid infrared divergences, a finite volume is used.
π SIMILAR VOLUMES
The numerical solution of a model describing a two-dimensional fluidized bed is considered. The model takes the form of a hyperbolic system of conservation laws with source term, coupled with an elliptic equation for determining a streamfunction. Operator splitting is used to produce homogeneous one
The one-dimensional dispersion model under the assumption that the fluid is completely mixed in the radial direction is generally used to describe turbulent mixing in apparatus with axial flow. With increasing apparatus diameter, however, this assumption becomes less correct and it becomes necessary