Results 31 to 40 of about 19,039,568 (311)
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
doaj +1 more source
Diagonal Forms, Linear Algebraic Methods and Ramsey-Type Problems [PDF]
, 2013 This thesis focuses mainly on linear algebraic aspects of combinatorics. Let N_t(H) be an incidence matrix with edges versus all subhypergraphs of a complete hypergraph that are isomorphic to H. Richard M.
Wong, Wing Hong Tony
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Measuring similarities between transcription factor binding sites
BMC Bioinformatics, 2005 Background Collections of transcription factor binding profiles (Transfac, Jaspar) are essential to identify regulatory elements in DNA sequences. Subsets of highly similar profiles complicate large scale analysis of transcription factor binding sites ...
Gonze Didier +2 more
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Constructions of complex hadamard matrices via tiling abelian groups
, 2007 Applications in quantum information theory and quantum tomography have raised current interest in complex Hadamard matrices. In this note we investigate the connection between tiling of Abelian groups and constructions of complex Hadamard matrices ...
Matolcsi, Máté +2 more
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BMC Bioinformatics, 2010 Background Sequence comparisons make use of a one-letter representation for amino acids, the necessary quantitative information being supplied by the substitution matrices.
Zimmermann Karel, Gibrat Jean-François
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An Algorithmic Characterization of P-matricity II: Adjustments, Refinements, and Validation [PDF]
SIAM Journal on Matrix Analysis and Applications, 2019 Summary: The paper [ibid. 34, No. 3, 904--916 (2013; Zbl 1281.65088)], by the same authors as here, implicitly assumes that the iterates generated by the Newton-min algorithm for solving a linear complementarity problem of dimension \(n\), which reads \(0\leq x\perp(Mx+q)\geq0\), are uniquely determined by some index subsets of \([[ 1,n ]]\).
Ben Gharbia, Ibtihel +1 more
openaire +1 more source
Pairwise comparison matrices: an empirical research
, 2011 Our research focused on testing various characteristics of pairwise comparison (PC) matrices in controlled experiments. About 270 students have been involved in the test exercises and the final pool contained 450 matrices.
Dezső, Linda +7 more
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FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Block diagonalization of (p, q)-tridiagonal matrices
Special MatricesIn this article, we study the block diagonalization of (p,q)\left(p,q)-tridiagonal matrices and derive closed-form expressions for the number and structure of diagonal blocks as functions of the parameters pp, qq, and nn. This reduction enables efficient
Manjunath Hariprasad
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BMC Cancer, 2008 Background The invasive potential of cancer cells is usually assessed in vitro using Matrigel as a surrogate basement membrane. Yet cancer cell interaction with collagen I matrices is critical, particularly for the peritoneal metastatic route undertaken ...
Brown Theodore J +2 more
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