English

Basisness of Fucik eigenfunctions for the Dirichlet Laplacian

Classical Analysis and ODEs 2026-03-16 v1 Analysis of PDEs Spectral Theory

Abstract

We provide improved sufficient assumptions on sequences of Fucik eigenvalues of the one-dimensional Dirichlet Laplacian which guarantee that the corresponding Fucik eigenfunctions form a Riesz basis in L2(0,π)L^2(0,\pi). For that purpose, we introduce a criterion for a sequence in a Hilbert space to be a Riesz basis.

Keywords

Cite

@article{arxiv.2111.08329,
  title  = {Basisness of Fucik eigenfunctions for the Dirichlet Laplacian},
  author = {Falko Baustian and Vladimir Bobkov},
  journal= {arXiv preprint arXiv:2111.08329},
  year   = {2026}
}

Comments

11 pages, 3 figures