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A generalization of intertwining operators for vertex operator algebras

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0 Published in 2017 at "Journal of Algebra"

DOI: 10.1016/j.jalgebra.2017.08.011

Abstract: Abstract For a vertex operator algebra V, we generalize the notion of an intertwining operator among an arbitrary triple of V-modules to an arbitrary triple of N -graded weak V-modules and study their properties. We… read more here.

Keywords: operators vertex; vertex operator; intertwining operators; generalization intertwining ... See more keywords

General explicit descriptions for intertwining operators and direct rotations of two orthogonal projections

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0 Published in 2017 at "Linear Algebra and its Applications"

DOI: 10.1016/j.laa.2017.06.036

Abstract: Abstract In this paper, based on the block operator technique and operator spectral theory, general explicit descriptions for intertwining operators and direct rotations of two orthogonal projections are established. As a consequence, Kato's result (Kato,… read more here.

Keywords: descriptions intertwining; explicit descriptions; intertwining operators; general explicit ... See more keywords

Intertwining Operators between Two Orthogonal Projections

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0 Published in 2020 at "Numerical Functional Analysis and Optimization"

DOI: 10.1080/01630563.2020.1813166

Abstract: Abstract Let P and Q be a pair of orthogonal projections. In this note we will prove that there exists a unitary such that UP = QU and UQ = PU if and only if read more here.

Keywords: intertwining operators; orthogonal projections; two orthogonal; operators two ... See more keywords