2 citations · 2 across the 6 of their papers we have counts for
Showing 2013Show all
3 papers · 1 filter
math.AP2013
Eigenvalue gaps for the Laplacian on hypersurfaces of the sphere
Demetrios A. Pliakis
We provide lower estimates for the eigenvalues of the laplacian for hypersurfaces of the round sphere.
math-ph2013
Spectrally determined singularities in a potential with an inverse square initial term
Demetrios A. Pliakis
We study the inverse spectral problem for Bessel type operators with potential (v(x)): (H_κ=-\partial_x^2+\frac{k}{x^2}+v(x)). The potential is assumed smooth in ((0,R)) and with a…
math.AP2013★ 2 cited
The size of the nodal sets for the eigenfunctions of the smooth laplacian
Demetrios A. Pliakis
We prove estimates for eigenfunctions on a manifold equipped with a smooth metric. We use these estimates in order estimate the size of their nodal sets.