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Showing results 1 to 16 of 16.
Issue DateTitleAuthor(s)TypeAccess
2009Aventuras numéricas no cálculo do eRalha, Rui; Ralha, Elfrida; Gomes, Paula Cristina da CostaArticleOpen access
2013Blocked schur algorithms for computing the matrix square rootDeadman, Edvin; Higham, Nicholas J.; Ralha, RuiConference paperOpen access
2016Computação: "The unreasonable effectiveness of mathematics in the computer/natural sciences"Espírito Santo, José; Araújo, Cláudia Mendes; Forjaz, Maria Antónia, et al.Pedagogical publicationOpen access
Mar-2007Computing the square roots of matrices with central symmetryLiu Zhongyun; Zhang Yulin; Ralha, RuiArticleOpen access
2001An efficient parallel algorithm for the symmetric tridiagonal eigenvalue problemForjaz, Maria Antónia; Ralha, RuiConference paperOpen access
2-Jun-2016Matrix arithmetic-geometric mean and the computation of the algorithmCardoso, João R.; Ralha, RuiArticleOpen access
Oct-2015Minimization problems for certain structured matricesZhongyun Liu; Ralha, Rui; Zhang, Yulin, et al.ArticleOpen access
2012On computing complex square roots of real matricesLiu Zhongyun; Zhang Yulin; Santos, Jorge M. F., et al.ArticleOpen access
2010On inverse eigenvalue problems for block Toeplitz matrices with Toeplitz blocksZhang Yulin; Liu Zhongyun; Ferreira, Carla, et al.ArticleOpen access
2015On simple bounds for eigenvalues of symmetric tridiagonal matricesRalha, RuiArticleOpen access
Jul-2007Parallel bidiagonalization of a dense matrixCampos, Carlos; Guerrero, David; Hernandez, Vicente, et al.ArticleOpen access
Feb-2009Perturbation splitting for more accurate eigenvaluesRalha, RuiArticleOpen access
Dec-2011Reliable eigenvalues of symmetric tridiagonalsRalha, RuiArticleOpen access
Sep-2012Structure-preserving schur methods for computing square roots of real skew-hamiltonian matricesLiu Zhongyun; Zhang Yulin; Ferreira, Carla, et al.ArticleOpen access
Nov-2012The geometric mean algorithmRalha, RuiArticleOpen access
2011Very high-order finite volume method for one-dimensional convection diffusion problemsStéphane, Clain; Diot, S.; Loubère, R., et al.Conference paperRestricted access (UMinho)