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Physical Sciences and Mathematics

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University at Albany, State University of New York

Theses/Dissertations

2015

Operator theory

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Lorentz Group Of Submodules In H²(D²), Yue Wu Jan 2015

Lorentz Group Of Submodules In H²(D²), Yue Wu

Legacy Theses & Dissertations (2009 - 2024)

Submodules of the Hardy space have connections with many areas in operator


On Numerical Invariants Of Submodules In H²(D²), Yixin Yang Jan 2015

On Numerical Invariants Of Submodules In H²(D²), Yixin Yang

Legacy Theses & Dissertations (2009 - 2024)

This thesis studies the submodules of $H^2(\mathbb{D}^2)$ by using operator theoretic approaches. The first part focus on the two pairs of operators (R_z,R_w) and (S_z,S_w) on a submodule. The second part studies the two-inner-sequences-based submodules from the point view of operator model theory. Lastly, using inner-sequence-based submodules, we show that the multivariable Berger-Shaw theorem may not exist.