4 papers
Damping optimization of discrete mechanical systems -- rod/string model
Ninoslav Truhar, Krešimir Veselić
This paper investigates two optimization criteria for damping optimization in a multi-body oscillator system with arbitrary degrees of freedom (), resembling string/rod free vib…
Perturbation of eigenvalues of the Klein Gordon operators II
Krešimi Veselić
We give estimates for the changes of the eigenvalues of the Klein Gordon operator under the change of the potential. In some relevant situations we improve the existing estimates.…
Protecting points from operator pencils
Albrecht Seelmann, Matthias Täufer, Krešimir Veselić
We classify all sets of the form where and are self-adjoint operators and is bounded, non-negative, and non-zero. We show…
Diagonalization of indefinite saddle point forms
Luka Grubišić, Vadim Kostrykin, Konstantin A. Makarov +2
We obtain sufficient conditions that ensure block diagonalization (by a direct rotation) of sign-indefinite symmetric sesquilinear forms as well as the associated operators that ar…