In recent years, Fuzzy differential equations are very useful indifferent sciences such as physics, chemistry, biology and economy. It should be noted, that if the equations that appear to be uncertain, then take help of fuzzy logic at these equations. Considering that most of the time analytic solution of such equations and finding an exact solution has either high complexity or cannot be solv...

We construct a family of integrable equations the form vt = f(v; vx; vxx; vxxx) such that f is transcendental function in v; vxx. This related to Krichever-Novikov equation by differential substitution. Our construction and corresponding substitutions involves geometry genus two curves their Jacobians.