In this note we will show that Theta functions are a solution of the icosahedron equation and also a solution of the Ernst equation for the stationary axisymmetric case of Einstein’s gravitational equation.
Advanced Trends in Mathematics (Volume 2)
J.A. de Wet "Icosahedral Symmetry and Quantum Gravity", Advanced Trends in Mathematics, Vol. 2, pp. 33-34, 2015