By using the Lie group analysis method of fractional differential equations, we derive Lie symmetries for the time fractional Derrida–Lebowitz–Speer–Spohn (FDLSS) equation with Riemann–Liouville derivative.
In a particular case of scaling transformations, we transform the FDLSS equation into a nonlinear ordinary fractional differential equation.
Based on the new conservation laws theorem and the fractional generalization of the Noether operators, we derived conservation laws for the FDLSS equation.