Results 41 to 50 of about 2,984,671 (302)

matrix-toolbox/CHM_CATALOG: v2.2.0

open access: yes, 2023
Sinkhorn matrices, symmetric and Hermitian ...
matrix-toolbox
core   +1 more source

Latent Multi-View Semi-Nonnegative Matrix Factorization with Block Diagonal Constraint

open access: yesAxioms, 2022
Multi-view clustering algorithms based on matrix factorization have gained enormous development in recent years. Although these algorithms have gained impressive results, they typically neglect the spatial structures that the latent data representation ...
Lin Yuan   +3 more
doaj   +1 more source

Identification of Matrix Joint Block Diagonalization

open access: yesCoRR, 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
openaire   +4 more sources

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

Minimizing the condition number of a positive definite matrix by completion [PDF]

open access: yes, 1994
Elsner L, He C, Mehrmann V. Minimizing the condition number of a positive definite matrix by completion. Numerische Mathematik. 1994;69(1):17-23.We consider the problem of minimizing the spectral condition number of a positive definite matrix by ...
Mehrmann, Volker   +2 more
core   +1 more source

Rab14 regulates the transport of human papillomavirus to the trans‐Golgi network for infectious cell entry

open access: yesFEBS Letters, EarlyView.
This study reveals that the small GTPase Rab14 is necessary for human papillomavirus (HPV) infection and plays an essential role in the transport of virions to the trans‐Golgi network (TGN). HPV in the early endosome (EE), which harbors GTP‐bound Rab14, is transported to the TGN through the switch of Rab14 from its GTP‐bound to GDP‐bound form.
Yoshiyuki Ishii, Iwao Kukimoto
wiley   +1 more source

Finding a rank-maximizing matrix block

open access: yes, 1966
An algorithm is developed for the following problem: Given three matrices of respective dimensions sXs, sXt, and tXs, to find a tXt matrix such that the (s+t)X(s+t) matrix formed from the four blocks has maximum ...
Goldman, A. J.; Newman, M.
core   +1 more source

matrix-toolbox/chm: CHM

open access: yes, 2023
various CHM ...
matrix-toolbox
core   +1 more source

Optimal Backward Perturbation Analysis for the Block Skew Circulant Linear Systems with Skew Circulant Blocks

open access: yesAbstract and Applied Analysis, 2014
We first give the block style spectral decomposition of arbitrary block skew circulant matrix with skew circulant blocks. Secondly, we obtain the singular value of block skew circulant matrix with skew circulant blocks as well.
Zhaolin Jiang, Juan Li, Jianwei Zhou
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

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