The first Hadamard variation of Neumann-Poincaré eigenvalues on the sphere

Kazunori Ando, Hyeonbae Kang, Yoshihisa Miyanishi +1

The Neumann-Poincaré operator on the sphere has $\frac{1}{2(2k+1)}$, $k=0,1,2,\dots$, as its eigenvalues and the corresponding multiplicity is $2k+1$. We consider the bifurcation…