Results 211 to 220 of about 71,800 (235)

The Learning Rate Is Not a Constant: Sandwich-Adjusted Markov Chain Monte Carlo Simulation. [PDF]

Entropy (Basel)
Vrugt JA, Diks CGH.
europepmc   +1 more source

Principal Component Analysis in Space Forms. [PDF]

IEEE Trans Signal Process
Tabaghi P, Khanzadeh M, Wang Y, Mirarab S.   +3 more
europepmc   +1 more source

Research on the Consensus Convergence Rate of Multi-Agent Systems Based on Hermitian Kirchhoff Index Measurement. [PDF]

Entropy (Basel)
Deng H, Wu T.
europepmc   +1 more source

On bounded rank positive semidefinite matrix completions of extreme partial correlation matrices.

, 2012
Marianna E.-Nagy, Monique Laurent, Antonios Varvitsiotis   +2 more
openalex   +1 more source

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The -positive semidefinite matrices A such that are nonsingular

Linear and multilinear algebra, 2023
This work focuses on the class of $ \mathcal {L} $ L-positive semidefinite matrices A such that $ AA_{(\mathcal {L})}^{(\dag )}-A_{(\mathcal {L})}^{(\dag )}A $ AA(L)(†)−A(L)(†)A is nonsingular, where $ A_{(\mathcal {L})}^{(\dag )} $ A(L)(†) is the ...
Jiale Gao, Kezheng Zuo, Yinlan Chen, Jiabao Wu   +3 more
semanticscholar   +1 more source

Singular value and norm inequalities for positive semidefinite matrices

Linear and multilinear algebra, 2021
We prove several singular value and norm inequalities involving generalized commutators and anticommutators of positive semidefinite matrices. These inequalities improve and extend earlier known inequalities, including an inequality due to Davidson and ...
Ahmad Al-Natoor, F. Kıttaneh
semanticscholar   +1 more source

Inequalities on 2 × 2 block positive semidefinite matrices

Linear and multilinear algebra, 2021
We obtain two matrix inequalities on the off-diagonal block of 2 × 2 block positive semidefinite matrices and the geometric mean of its diagonal blocks. They improve some results of Lee [Linear Algebra Appl. 2015:486;449–453] and extend some inequalities
Xiaohui Fu, Pan-Shun Lau, T. Tam
semanticscholar   +1 more source

Inequalities on partial traces of positive semidefinite block matrices

Canadian mathematical bulletin, 2020
Inequalities on partial traces of positive semidefinite matrices are studied. Extensions of several existing inequalities on the determinant of partial traces are then obtained.
Xiaohui Fu, Pan-Shun Lau, T. Tam
semanticscholar   +1 more source

Further unitarily invariant norm inequalities for positive semidefinite matrices

Positivity (Dordrecht), 2022
Ahmad Al-Natoor, F. Kıttaneh
semanticscholar   +1 more source