Variable
N
0 < N < k 2 θ 3 16 β
p *
θ β − ( 2 N k 2 β 2 ) 1 / 3
a *
( N 2 2 k β ) 2 / 3
D *
π m + r ∗
N θ β − 3 ( N 2 2 k β ) 2 / 3