3 papers
math.OC2026
Linear complementarity properties of some classes of banded matrices
Samapti Pratihar, M. Seetharama Gowda, K. C. Sivakumar
A banded matrix is a real square matrix where nonzero entries appear around the main diagonal. In this article, we consider linear complementarity properties of (variants) of bande…
math.GM2024
Graph theoretic proofs for some results on banded inverses of -matrices
S. Pratihar, K. C. Sivakumar
This work concerns results on conditions guaranteeing that certain banded -matrices have banded inverses. As a first goal, a graph theoretic characterization for an off-diagonal…
math.RA2024
Inverse -matrices with the bi-diagonal south-west structure
Samapti Pratihar, K. C. Sivakumar
Two new matrix classes are introduced; inverse cyclic matrices and bi-diagonal south-west matrices. An interesting relation is established between these classes. Applications to tw…