Is the bounded rank perturbations problem for matrix pencils just a completion problem?
In this paper, we study a direct link between the bounded rank perturbations problem and the completion problem for matrix pencils. We conjecture that the bounded rank perturbations problem is, in fact, equivalent to a completion problem. We prove the conjecture in three cases: when the rank bound is one, when the involved pencils are of full row rank, and when the rank bound equals the rank distance of the involved matrix pencils.
Authors
- Marija Dodig (ORCID: https://orcid.org/0000-0001-8209-6920)
- Marko Stošić (ORCID: https://orcid.org/0000-0002-4464-396X)
Institutions
- University of Lisbon (PT)
- Lusíada University of Lisbon (PT)
Publication Details
- Journal
- Electronic Journal of Linear Algebra
- Published
- 2025-09-24
- DOI
- https://doi.org/10.13001/ela.2025.9593
- Citations
- 1
- Primary Topic
- Matrix Theory and Algorithms
- Type
- article
- Field-Weighted Citation Impact
- 1.50
Funders
- Universidade de Lisboa
- Fundação para a Ciência e a Tecnologia