Browsing by Author Duarte, António Leal

Results 1 to 7 of 7
Issue DateTitleAuthor(s)TypeAccess
2009The change in eigenvalue multiplicity associated with perturbation of a diagonal entry of the matrixJohnson, Charles R. ; Duarte, António Leal ; Saiago, Carlos M. preprintopenAccess
2003Converse to the Parter-Wiener Theorem: the case of non-treesJohnson, Charles R. ; Duarte, António Leal preprintopenAccess
2004A Fiedler's type characterization of band matricesBento, Américo ; Duarte, António Leal preprintopenAccess
2009Imbedding conditions for normal matricesQueiró, João Filipe ; Duarte, António Leal articleopenAccess
2002Inverse eigenvalue problems and lists of multiplicities of eigenvalues for matrices whose graph is a tree: the case of generalized stars and double generalized starsJohnson, Charles R. ; Duarte, António Leal ; Saiago, Carlos M. preprintopenAccess
2003On Fiedler's characterization of tridiagonal matrices over arbitrary fieldsBento, Américo ; Duarte, António Leal preprintopenAccess
2008The structure of matrices with a maximum multiplicity eigenvalueJohnson, Charles R. ; Duarte, António Leal ; Saiago, Carlos M. articleopenAccess