Scaling of minimal ridge
A. Lobkovsky, 1996
y
1: [f, f ] = D2(G-1 c )
2: h2 D2 f  =. [(G-1 c) , f ]
rescaling:
rescale y, f, c by unknown powers of h  
y = ha y*, c = hb c*, f = hc f*
require that 1, 2 be finite as h ¨0 when written in * variables.
this determines a, b, c
eg a = 1/3. Means ridge width µ h1/3
Two new scaling properties emerge:
with distance from vertex
with bending angle a