M. Hemalatha

collaborators

3 papers

math.FA2026

Characterization of Frame-Related Sequences on Semi-Hilbert Spaces

Hemalatha M, P. Sam Johnson

Let $A \in B (H)^{+}$ and $B \in B (ℓ^{2})^{+}$ be positive bounded operators. We investigate reduced weighted adjoints of densely defined closable operators and use the…

math.FA2026

Frame related sequences in tensor product of Hilbert spaces

Hemalatha M

We study frames and related sequences in tensor products of separable Hilbert spaces from an algebraic perspective. For sequences ${f_{n}}_{n \in N} \subset H_{1}$ and $\{g_m\…

math.FA2025

Direct Sum of Lower Semi-Frames in Hilbert Spaces

Hemalatha M, P. Sam Johnson, Harikrishnan P. K

In this paper, structural properties of lower semi-frames in separable Hilbert spaces are explored with a focus on transformations under linear operators (may be unbounded). Also,…