Next, let us find the occupancy (mean occupation number) *f*_{k,ms}:

.

Now, we note that for |*x*|<1,

.

This tells us that the sum in the numerator is thus , and so

.

Compare this to the occupancy for a fermion fluid ; the difference is a change of sign in the denominator. Note that unlike the fermion case, for a boson fluid, the occupancy can be greater than one.

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