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math.FA2024
Frame Scaling by Graphs
Ayyanar K, P. Sam Johnson, A. Senthil Thilak
In this paper, we investigate the scalability of a given frame in by using graphs. For each frame in , we associate a simple undirected graph $G(ϕ)…
math.FA2024
Complementable Operators and their Schur Complements
Sachin Manjunath Naik, P. Sam Johnson
In this paper, we characterize complementable operators and provide more precise expressions for the Schur complement of these operators using a single Douglas solution. We demonst…