Change in vertex status after removal of another vertex in the general setting
Johnson, Charles R., Saiago, Carlos M., Toyonaga, Kenji
Published in Linear algebra and its applications (01.03.2021)
Published in Linear algebra and its applications (01.03.2021)
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Journal Article
The change in multiplicity of an eigenvalue due to adding or removing edges
Johnson, Charles R., Saiago, Carlos M., Toyonaga, Kenji
Published in Linear algebra and its applications (01.01.2019)
Published in Linear algebra and its applications (01.01.2019)
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Journal Article
Geometric Parter–Wiener, etc. theory
Johnson, Charles R., Saiago, Carlos M.
Published in Linear algebra and its applications (15.01.2018)
Published in Linear algebra and its applications (15.01.2018)
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Journal Article
The number of distinct eigenvalues for which an index decreases multiplicity
Johnson, Charles R., Duarte, António Leal, Saiago, Carlos M.
Published in Linear algebra and its applications (01.03.2017)
Published in Linear algebra and its applications (01.03.2017)
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Journal Article
Further generalization of symmetric multiplicity theory to the geometric case over a field
Cinzori, Isaac, Johnson, Charles R., Lang, Hannah, Saiago, Carlos M.
Published in Special matrices (01.01.2021)
Published in Special matrices (01.01.2021)
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Journal Article
The change in eigenvalue multiplicity associated with perturbation of a diagonal entry
Johnson, Charles R., Leal-Duarte, António, Saiago, Carlos M.
Published in Linear & multilinear algebra (01.05.2012)
Published in Linear & multilinear algebra (01.05.2012)
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Journal Article
The Parter-Wiener theorem: Refinement and generalization
JOHNSON, Charles R, DUARTE, Antonio Leal, SAIAGO, Carlos M
Published in SIAM journal on matrix analysis and applications (01.01.2003)
Published in SIAM journal on matrix analysis and applications (01.01.2003)
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Journal Article
The structure of matrices with a maximum multiplicity eigenvalue
Johnson, Charles R., Leal Duarte, António, Saiago, Carlos M.
Published in Linear algebra and its applications (01.08.2008)
Published in Linear algebra and its applications (01.08.2008)
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Journal Article
Inverse eigenvalue problems and lists of multiplicities of eigenvalues for matrices whose graph is a tree: the case of generalized stars and double generalized stars
Johnson, Charles R., Leal Duarte, António, Saiago, Carlos M.
Published in Linear algebra and its applications (01.11.2003)
Published in Linear algebra and its applications (01.11.2003)
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Journal Article
The trees for which maximum multiplicity implies the simplicity of other eigenvalues
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Journal Article
Conference Proceeding
On the relative position of multiple eigenvalues in the spectrum of an Hermitian matrix with a given graph
Johnson, Charles R., Leal Duarte, António, Saiago, Carlos M., Sutton, Brian D., Witt, Andrew J.
Published in Linear algebra and its applications (01.04.2003)
Published in Linear algebra and its applications (01.04.2003)
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Journal Article
Conference Proceeding