  The Dirac equation for the electron around a five-dimensional rotating black
hole with two different angular momenta is separated into purely radial and
purely angular equations. The general solution is expressed as a superposition
of solutions derived from these two decoupled ordinary differential equations.
By separating variables for the massive Klein-Gordon equation in the same
space-time background, I derive a simple and elegant form for the
Stackel-Killing tensor, which can be easily written as the square of a
rank-three Killing-Yano tensor. I have also explicitly constructed a symmetry
operator that commutes with the scalar Laplacian by using the Stackel-Killing
tensor, and the one with the Dirac operator by the Killing-Yano tensor admitted
by the five-dimensional Myers-Perry metric, respectively.
