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Browder spectra of closed upper triangular operator matrices

open access: yesAIMS Mathematics
Let $ T_{B} = \left[\begin{array}{ll} A & B \\ 0 & D \end{array}\right] $ be an unbounded upper operator matrix with diagonal domain, acting in $ \mathcal H \oplus\mathcal K $, where $ \mathcal H $ and $ \mathcal K $ are Hilbert spaces.
Qingmei Bai   +2 more
doaj   +1 more source

Hamiltonian BF theory and projected Borromean Rings [PDF]

open access: green, 2011
Ernesto Contreras   +2 more
openalex   +1 more source

Hamiltonian [PDF]

open access: yes, 2018
We present a purely algebraic approach to the Hamiltonian / Gauge theoretical invariants associated to torus actions on affine spaces. Secondly, we address the issue of computing the invariants: a localization and a genus recursion formula are ...
openaire  

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