Diagonalization of indefinite saddle point forms
Mathematical Physics
2017-10-17 v1 Functional Analysis
math.MP
Spectral Theory
Abstract
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 are semi-bounded neither from below nor from above. In the semi-bounded case, we refine the obtained results and, as an example, revisit the block Stokes Operator from fluid dynamics.
Cite
@article{arxiv.1710.05105,
title = {Diagonalization of indefinite saddle point forms},
author = {Luka Grubišić and Vadim Kostrykin and Konstantin A. Makarov and Stephan Schmitz and Krešimir Veselić},
journal= {arXiv preprint arXiv:1710.05105},
year = {2017}
}
Comments
21 pages