Results 31 to 40 of about 3,133,998 (302)
A note on optimal block-scaling of matrices [PDF]
, 1984 Elsner L. A note on optimal block-scaling of matrices. Numerische Mathematik. 1984;44(1):127-128.After pointing out that two recent results on optimal blockscaling are equivalent, a new short and simple proof of both results is ...
Elsner, Ludwig
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, 2019 In this study, a novel model for the vehicle routing problem that considers transportation type selection between milk-run and cross-dock strategies under uncertain environment with fuzzy travel time is proposed to derive an optimal transportation plan ...
Yong Chen (109188) +3 more
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The influence of acrylate triblock copolymer embedded in matrix on composite structures’ responses to low-velocity impacts [PDF]
, 2012 In passive safety structures the use of composite materials has increased significantly recently due to their low specific mass and high energy absorption capacities.
Frédéric Leonardi +7 more
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The polar decomposition of block companion matrices
, 2005 Let L(λ) = Inλm + Am−1λm−1 + …+A1λ + A0 be an n × n monic matrix polynomial, and let CL be the corresponding block companion matrix. In this note, we extend a known result on scalar polynomials to obtain a formula for the polar decomposition of CL when ...
Psarrakos, P +3 more
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Some New Algebraic Method Developments in the Characterization of Matrix Equalities
AxiomsAlgebraic expressions and equalities can be constructed arbitrarily in a given algebraic framework according to the operational rules provided, and thus it is a prominent and necessary task in mathematics and applications to construct, classify, and ...
Yongge Tian
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, 2015 The selection of optimal designs for generalized linear mixed models is complicated by the fact that the Fisher information matrix, on which most optimality criteria depend, is computationally expensive to evaluate.
Waite, Timothy W +3 more
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Representations of group rings and groups [PDF]
International Journal of Group Theory, 2018 An isomorphism between the group ring of a finite group and a ring of certain block diagonal matrices is established. It is shown that for any group ring matrix $A$ of $mathbb{C} G$ there exists a matrix $U$ (independent of $A$) such that $U^{-1}AU= diag(
Ted Hurley
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Identification of Matrix Joint Block Diagonalization
CoRR, 2020 Given a set $\mathcal{C}=\{C_i\}_{i=1}^m$ of square matrices, the matrix blind joint block diagonalization problem (BJBDP) is to find a full column rank matrix $A$ such that $C_i=AΣ_iA^\text{T}$ for all $i$, where $Σ_i$'s are all block diagonal matrices with as many diagonal blocks as possible.
Yunfeng Cai, Ping Li 0001
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Cross-social-network user alignment research based on multi-dimensional user features
Systems Science & Control EngineeringAccurately aligning the same users on different flat social networks to merge user information and create more nuanced user profiles is critical. However, the current research in this area faces challenges related to low efficiency and inadequate ...
Tao Zhao +4 more
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Optimal sampling algorithms for block matrix multiplication
Journal of Computational and Applied Mathematics, 2023 In this paper, we investigate the randomized algorithms for block matrix multiplication from random sampling perspective. Based on the A-optimal design criterion, the optimal sampling probabilities and sampling block sizes are obtained. To improve the practicability of the block sizes, two modified ones with less computation cost are provided.
Chengmei Niu, Hanyu Li
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