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Re ned rigorous perturbation bounds for the SR decomposition
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作者 Mahvish Samar Aamir Farooq 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2021年第4期537-553,共17页
In this article,some new rigorous perturbation bounds for the SR decomposition un-der normwise or componentwise perturbations for a given matrix are derived.Also,the explicit expressions for the mixed and componentwis... In this article,some new rigorous perturbation bounds for the SR decomposition un-der normwise or componentwise perturbations for a given matrix are derived.Also,the explicit expressions for the mixed and componentwise condition numbers are presented by utilizing the block matrix-vector equation approach.Hypothetical and trial results demonstrate that these new bounds are constantly more tightly than the comparing ones in the literature. 展开更多
关键词 SR decomposition Rigorous perturbation bound Lyapunov majorant function Banach fixed point theorem Mixed and componentwise condition numbers
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A Parallel Integration Method of Cooperative Target-Localization and Cooperative Self-localization
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作者 WANG Leigang KONG Depei +1 位作者 ZHOU Jihang WANG Jianlu 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2022年第2期231-238,共8页
When a group of mobile agents track a target,they can locate themselves and the target in a cooperative manner.To maximize the group advantage,a parallel integration strategy of cooperative target-localization(CTL)and... When a group of mobile agents track a target,they can locate themselves and the target in a cooperative manner.To maximize the group advantage,a parallel integration strategy of cooperative target-localization(CTL)and cooperative self-localization(CSL)is designed.Firstly,a global cost function containing the agents’positions and the target’s position is established.Secondly,along with the agents’positions being re-estimated during CTL,the Utransform is employed to propagate the error covariance of the position estimations among the agents.The simulation results show that,the proposal exploits more information for locating the target and the agents than the cases where CTL and CSL run separately,and the global optimal position estimations of the agents and the target are obtained. 展开更多
关键词 cooperative self-localization cooperative target-localization non-classical multi-dimensional scaling majoring function
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A necessary and sufficient condition for ternary majority functions being monotonic functions
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《Chinese Science Bulletin》 SCIE CAS 1998年第23期2018-2019,共2页
关键词 A necessary and sufficient condition for ternary majority functions being monotonic functions
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