De Noyer, The effect of variations in layer thickness of Love waves .
Bhattacharya, On the dispersion curve for Love waves due to irregularity in the thickness of the transversely isotropic crustal layer.
This is well-known equation for Love waves in a homogeneous isotropic layer over a homogeneous isotropic half space.
1961, "The effect of variations in layer thickness of Love waves," Bull Seis Soc.
A note on Love waves
in a homogeneous crust overlying an inhomogeneous substratum, Bulletin of the Seismological Society of America 52(3): 639- 645.
Periods of G waves lie in the range from about 50 to 350s, corresponding to a flat portion of the group velocity curve for Love waves, which has been extended up to periods of around 700s (Burne, Benioff and Ewing 1961).
which is the usual dispersion equation for Love waves with [[beta].