Results 1 to 10 of about 338,815 (165)
On a criterion of D-stability for P-matrices
Special Matrices, 2016 In this paper, we study positive stability and D-stability of P-matrices.We introduce the property of Dθ-stability, i.e., the stability with respect to a given order θ.
Kushel Olga Y.
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A geometric calibration method for inverse geometry computed tomography using P-matrices. [PDF]
Proc SPIE Int Soc Opt Eng, 2016 Accurate and artifact free reconstruction of tomographic images requires precise knowledge of the imaging system geometry. This work proposes a novel projection matrix (P-matrix) based calibration method to enable C-arm inverse geometry CT (IGCT).
Slagowski JM +3 more
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On the fine spectra of the Jacobi matrices on c_0,c,l_p (1≤p≤∞) and 〖bv〗_p (1≤p
Cumhuriyet Science Journal, 2021 The spectrum and spectral divisions of band matrices are very new and popular topics of studies. In this paper, our aims are to investigate boundedness of Jacobi matrix which is a band matrix has important role in physics and give subdivisions of the ...
Mustafa Yıldırım +2 more
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An Algorithmic Characterization of $P$-Matricity [PDF]
SIAM Journal on Matrix Analysis and Applications, 2013 Nous montrons dans cet article qu'une matrice M est une P-matrice si, et seulement si, quel que soit le vecteur q, l'algorithme de Newton-min ne fait pas de cycle de deux points lorsqu'il est utilisé pour résoudre le problème de compl\émentarité linéaire 0 ≤ x ⊥ (Mx+q) ≥ 0.
Ben Gharbia, Ibtihel +1 more
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The p-norm of circulant matrices via Fourier analysis
Concrete Operators, 2022 A recent work derived expressions for the induced p-norm of a special class of circulant matrices A(n, a, b) ∈ ℝn×n, with the diagonal entries equal to a ∈ ℝ and the off-diagonal entries equal to b ≥ 0.
Sahasranand K. R.
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On the stability of P-matrices
Linear Algebra and its Applications, 2007 We thank Dr. Lachlan Andrew of Caltech for helpful discussions.
Tang, A. Kevin +3 more
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Journal of Inequalities and Applications, 2019 A new upper bound for the infinity norm for the inverse of {P1,P2} $\{P_{1},P _{2}\}$-Nekrasov matrices is given. It is proved that the upper bound is sharper than those in Cvetković et al. (Open Math.
Yaqiang Wang, Lei Gao
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Nonsingularity and $P$-matrices. [PDF]
Applications of Mathematics, 1990 Let \(A^-\) and \(A^+\) denote \(n\times n\) matrices satisfying \(A^-\leq A^+\) (the inequality being understood componentwise) and let the interval matrix \(A^ I=[A^-,A^+]=\{A|\) \(A^-\leq A\leq A^+\}\) be nonsingular which means that all \(A\in A^ I\) are nonsingular.
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P-matrices and N-matrices [PDF]
Linear Algebra and its Applications, 1983 In this chapter we will give a geometric characterization of P-matrices. We will give some properties of N-matrices. These facts we need later to prove global univalence results due to Gale, Nikaido and Inada. We will also see the interrelation between P-matrices and positive quasi-definite matrices.
Projesh Nath Choudhury, M. Rajesh Kannan
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Extensions of inequalities for sector matrices
Journal of Inequalities and Applications, 2019 In this note, we first prove an inequality for sector matrices. This complements a result due to Kittaneh and Sakkijha (Linear Multilinear Algebra, 2018, https://doi.org/10.1080/03081087.2018.1441800) concerning accretive–dissipative matrices.
Song Lin, Xiaohui Fu
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