2017/08/14 by Keshav Raj Acharya, Acharya, Keshav
Mathematics · #FOS: Physical sciences #Holomorphic and Operator Theory #Mathematical Analysis and Transform Methods #Mathematical Physics (math-ph) #Spectral Theory in Mathematical Physics
paper · pdf · doi:10.48550/arxiv.1708.04306
openalex publication_date 2017/08/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We develop the Titchmarsh-Weyl theory for vector-valued discrete Schrödinger operators and show that the Weyl m functions associated with these operators map complex upper half plane to the Siegel upper half space. We also discuss about the Weyl disk and Weyl circle corresponding to these operators.