K. Sivakumar

collaborators

3 papers

math.FA2026

Positive Linear Maps on Second Symmetric Product Spaces

Pavankumar Raickwade, K. C. Sivakumar

Let $X^{(2)}$ denote the second symmetric product space of a partially ordered vector space $X$ , endowed with the projective cone. A characterization of linear maps $T\colon X^{(2)…

math.FA2026

Invertible positive maps that are not automorphism

Pavankumar Raickwade, K. C. Sivakumar

Let $X$ be a real normed vector space with a cone $K \subseteq X$ satisfying either (i) $K$ is closed with non-empty interior or (ii) $K$ has non-zero extremals or (iii) $K$ is clos…

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…