Results 51 to 60 of about 237,012 (170)

Positive linear maps and spreads of matrices-II

Linear Algebra and its Applications, 2016
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Bhatia, Rajendra, Sharma, Rajesh
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Positivity of linear maps under tensor powers [PDF]

Journal of Mathematical Physics, 2015
We investigate linear maps between matrix algebras that remain positive under tensor powers, i.e., under tensoring with n copies of themselves. Completely positive and completely co-positive maps are trivial examples of this kind. We show that for every n ∈ ℕ, there exist non-trivial maps with this property and that for two-dimensional Hilbert spaces ...
Müller-Hermes, Alexander, Reeb, David, Wolf, Michael M.   +2 more
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A New Type of High-Order Mapped Unequal-Sized WENO Scheme for Nonlinear Degenerate Parabolic Equations

Computation
In this paper, we propose the MUSWENO scheme, a novel mapped weighted essentially non-oscillatory (WENO) method that employs unequal-sized stencils, for solving nonlinear degenerate parabolic equations.
Zhengwei Hou, Liang Li
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Atomic Positive Linear Maps in Matrix Algebras

Publications of the Research Institute for Mathematical Sciences, 1998
We show that all of the known generalizations of the Choi maps are atomic maps.
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Positive linear maps and perturbation bounds of matrices

Linear Algebra and its Applications, 2017
We show how positive unital linear maps can be used to obtain lower bounds for the maximum distance between the eigenvalues of two normal matrices. Some related bounds for the spread and condition number of Hermitian matrices are also discussed here.
Sharma, R., Kumari, R.
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Extensions of Kadison’s inequality on positive linear maps

Linear Algebra and its Applications, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yuan, Jiangtao, Ji, Guoxing
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Cross-Domain Recommendation Based on Sentiment Analysis and Latent Feature Mapping

Entropy, 2020
Cross-domain recommendation is a promising solution in recommendation systems by using relatively rich information from the source domain to improve the recommendation accuracy of the target domain.
Yongpeng Wang, Hong Yu, Guoyin Wang, Yongfang Xie   +3 more
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Potential of non-contrast stress T1 mapping for the assessment of myocardial injury in hypertrophic cardiomyopathy

Journal of Cardiovascular Magnetic Resonance, 2023
Background Ischemia of the hypertrophied myocardium due to microvascular dysfunction is related to a worse prognosis in hypertrophic cardiomyopathy (HCM).
Hisanori Kosuge, Shoko Hachiya, Yasuhiro Fujita, Satoshi Hida, Taishiro Chikamori   +4 more
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Note on bounded solutions to nonhomogenous linear difference equations

Electronic Journal of Differential Equations, 2017
By using a solvability method along with the contraction mapping principle quite recently has been presented an interesting method for showing the existence of a unique bounded solution to a nonhomogenous linear second-order difference equation on the
Stevo Stevic, Bratislav Iricanin, Zdenek Smarda   +2 more
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Strong Convergence Theorems for Variational Inequalities and Split Equality Problem

Journal of Function Spaces and Applications, 2013
Let H1, H2, and H3 be real Hilbert spaces, let C⊆H1, Q⊆H2 be two nonempty closed convex sets, and let A:H1→H3, B:H2→H3 be two bounded linear operators. The split equality problem (SEP) is to find x∈C, y∈Q such that Ax=By.
Yu Jing Wu, Ru Dong Chen, Luo Yi Shi
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