Results 31 to 40 of about 242,246 (239)
South African Journal of Economic and Management Sciences, 2018 Volatile markets and economic environments can significantly distort the shape and smoothness of yield curve movements. This study explores the influence of movements in United States interest rates on South African interest rates.
Kavir Patel +2 more
doaj +1 more source
Iheringia: Série Zoologia, 2004 The relationship between body size and geographic range was analyzed for 70 species of terrestrial Carnivora ("fissipeds") of the New World, after the control of phylogenetic patterns in the data using phylogenetic eigenvector regression.
Natália M. Tôrres +1 more
doaj +1 more source
On Universal Eigenvalues and Eigenvectors of Hypermatrices [PDF]
arXiv, 2023 A cubic hypermatrix of order $d$ can be considered as a structure matrix of a tensor with covariant order $r$ and contra-variant order $s=d-r$. Corresponding to this matrix expression of the hypermatrix, an eigenvector $x$ with respect to an eigenvalue $\lambda$ is proposed, called the universal eigenvector and eigenvalue of the hypermatrix.
arxiv
Partial eigenvalue assignment problem of linear control systems using orthogonality relations [PDF]
Acta Montanistica Slovaca, 2006 The partial eigenvalue assignment is the problem of reassigning a part of the open-loop spectrum of a linear system by a feedback control, leaving the rest of the spectrum invariant.
Mohamed A. Ramadan, Ehab A. El - Sayed
doaj
Elements of dynamic parameters modification and sensitivity [PDF]
FME Transactions, 2013 Structural modifications can cause changes in the matrices of some elements. Depending on the type of structure, or a desired change, a group of elements can be modified.
Trišović Nataša +3 more
doaj
A New Fixed Point Result of Perov Type and Its Application to a Semilinear Operator System
Mathematics, 2019 In this paper, we present a new generalization of the Perov fixed point theorem on vector-valued metric space. Moreover, to show the significance of our result, we present both a nontrivial comparative example and an application to a kind of semilinear ...
Ishak Altun +3 more
doaj +1 more source
Localization and universality of eigenvectors in directed random graphs [PDF]
Phys. Rev. Lett. 126, 040604 (2021), 2020 Although the spectral properties of random graphs have been a long-standing focus of network theory, the properties of right eigenvectors of directed graphs have so far eluded an exact analytic treatment. We present a general theory for the statistics of the right eigenvector components in directed random graphs with a prescribed degree distribution ...
arxiv +1 more source
Dependence of Supertropical Eigenspaces [PDF]
, 2016 We study the pathology that causes tropical eigenspaces of distinct supertropical eigenvalues of a nonsingular matrix $A$, to be dependent. We show that in lower dimensions the eigenvectors of distinct eigenvalues are independent, as desired.
Niv, Adi, Rowen, Louis
core +4 more sources
A First Approach to Quantum Logical Shape Classification Framework
MathematicsQuantum logic is a well-structured theory, which has recently received some attention because of its fundamental relation to quantum computing. However, the complex foundation of quantum logic borrowing concepts from different branches of mathematics as ...
Alexander Köhler +2 more
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Journal of Statistical Mechanics: Theory and ExperimentAbstract Among the performance-enhancing procedures for Hopfield-type networks that implement associative memory, Hebbian unlearning (HU) (or dreaming) strikes for its simplicity and lucid biological interpretation. However, it does not easily lend to a clear analytical understanding.
Benedetti, Marco +3 more
openaire +4 more sources