Symbolic computation applied to the study of the kernel of a singular integral operator with non-carleman shift and conjugation

On the Hilbert space the singular integral operator with non-Carleman shift and conjugation is considered, where are the Cauchy projectors, , , , are continuous functions on the unit circle , U is the shift operator and C is the operator of complex conjugation. We show how the symbolic computation c...

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Bibliographic Details
Main Author: Conceição, Ana C. (author)
Other Authors: Marreiros, Rui (author), Pereira, José C. (author)
Format: article
Language:eng
Published: 2017
Online Access:http://hdl.handle.net/10400.1/9303
Country:Portugal
Oai:oai:sapientia.ualg.pt:10400.1/9303
Description
Summary:On the Hilbert space the singular integral operator with non-Carleman shift and conjugation is considered, where are the Cauchy projectors, , , , are continuous functions on the unit circle , U is the shift operator and C is the operator of complex conjugation. We show how the symbolic computation capabilities of the computer algebra system Mathematica can be used to explore the dimension of the kernel of the operator K. The analytical algorithm [ADimKer-NonCarleman] is presented; several nontrivial examples are given.