Choke point. In military strategy, a choke point (or chokepoint) is a geographical feature on land such as a valley, defile or a bridge or at sea such as a strait, which an armed force is forced to pass, sometimes on a substantially narrower front and therefore greatly decreasing its combat power, to reach its objective.
In this context, a canonical form is a representation such that every object has a unique representation. Thus, the equality of two objects can easily be tested by testing the equality of their canonical forms.anonical form can also mean a differential form that is defined in a natural (canonical) way. In computer science, data that has more than one possible representation can often be canonicalized into a completely unique representation called its canonical form.
The Canonical Partition Function is the ( Boltzmann ) weighted sum of the microstates of any system. The partition function is also a combinatorial generating function. See this great book on Generating Functionology. https://www.math.upenn.edu/~wilf... The partition function has lots of applications. In particular, we can use it to express the important global variables that describe a system, such as the Total Energy, the Free Energy, the Entropy, the Variance, etc.