We compute the minimal negative signature for a problem of extending chains of factorizations in spaces with indefinite inner product spaces. As an application, we obtain a formula for the minimal negative signature of Hermitian completions of tridiagonal partial block matrices.
Cite this article
Tiberiu Constantinescu, Aurelian Gheondea, Extending Chains of Factorizations and Minimal Negative Signatures. Z. Anal. Anwend. 13 (1994), no. 1, pp. 137–153DOI 10.4171/ZAA/520