18 citations · 38 across the 8 of their papers we have counts for
Showing math-phShow all
2 papers · 1 filter
math-ph2018
Perturbation of eigenvalues of the Klein-Gordon operators
Ivica Nakić, Krešimir Veselić
We prove inclusion theorems for both spectra and essential spectra as well as two-sided bounds for isolated eigenvalues for Klein-Gordon type Hamiltonian operators. We first study…
math-ph2009
Modal approximations to damped linear systems
K. Veseli/'c
We consider a finite dimensional damped second order system and obtain spectral inclusion theorems for the related quadratic eigenvalue problem. The inclusion sets are the 'quasi C…