The key part of this definition is that it is solely the transport of a material or quantity by the motion of a fluid, and so the advection geography definition depends strongly on wind currents or ocean currents. A warm ocean current, for example, moves higher-temperature water from one pl...
Hence, σ ( μ * ) is finite (note that | f ϵ | might be big in the proximity of the stationary solutions as per the definition given in expression (40), nonetheless it can be stated that | f ϵ | < ∞ in such proximity). Operating similarly to the search for a finite ...