Results 71 to 80 of about 23,530 (292)

Eigenvalues and eigenvectors of tridiagonal matrices

open access: yes, 2006
This paper is continuation of previous work by the present author, where explicitformulas for the eigenvalues associated with several tridiagonal matrices were given. In this paperthe associated eigenvectors are calculated explicitly. As a consequence, a
Kouachi, Said
core   +1 more source

ESG Decoupling Phenomenon: A Systematic and Bibliometric Analysis

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT ESG decoupling, defined as the gap between a firm's ESG disclosures and its actual practices, poses a critical challenge to corporate sustainability. Using the PRISMA protocol, 451 articles were selected for a comprehensive bibliometric and systematic literature review to map the intellectual structure and thematic evolution of the research on
Maryam Laeeq   +2 more
wiley   +1 more source

Supply Chain Network, ESG Scores and Financial Performance

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This paper provides novel evidence on the role of supply chain networks in influencing firms' environmental, social and governance (ESG) scores and financial performance. Our analysis employs financial, board, ESG and supply chain data, resulting in an unbalanced panel of over 16,000 firm‐year observations from 3028 publicly traded US firms ...
Michail Filippidis   +2 more
wiley   +1 more source

Using Nikiforov-Uvarov Method to Find the Single-Particle Nuclear States for Harmonic-Oscillator Potential

open access: yesScience Journal of University of Zakho, 2018
In this study the energy spectrum and Eigenvectors with a special type of central potential will be obtained by using Nikiforov-Uvarov method. The method covers a new algebraic technique to  make an exact diagonalization to find the eigenvalues and ...
Aziz H. Rahim, Nzar R. Abdullah
doaj  

Pattern Classification Using Secondary Components Perceptron and Economic Applications [PDF]

open access: yes
In this paper we will classify patterns using a modified Perceptron algorithm (Dumitrache et al., 1999). The generalization uses the eigenvalues and the eigenvectors of the sample covariance matrix, as we did for classifying patterns using PCR (Ciuiu ...
Ciuiu, Daniel
core  

How Supply Chain Transparency Shapes the Impact of Green Credit on Corporate Digital Responsibility

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Drawing on panel data from 4229 firm‐year observations of Chinese A‐share listed companies (2011–2022), this study investigates the relationship between green credit and corporate digital responsibility (CDR), focusing on the mediating role of supply chain transparency (SCT).
Muhammad Awais Gulzar   +3 more
wiley   +1 more source

Eigenvalues and Eigenvectors

open access: yes, 2005
Created by Lewis Blake for the Connected Curriculum Project, the purpose of this module is to experiment with the computation and use of eigenvalues and eigenvectors.
Blake, Lewis
core   +1 more source

APPLICATION OF THE RANDOM MATRIX THEORY ON THE CROSS-CORRELATION OF STOCK ‎PRICES [PDF]

open access: yesInternational Journal of Mathematical Modelling & Computations, 2016
The analysis of cross-correlations is extensively applied for understanding of interconnections in stock markets. Variety of methods are used in order to search stock cross-correlations including the Random Matrix Theory (RMT), the Principal Component ...
F. Sotoude Vanoliya   +1 more
doaj  

A partial envelope approach for modelling multivariate spatial‐temporal data

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract In the new era of big data, modelling multivariate spatial‐temporal data is a challenging task due to both the high dimensionality of the features and complex associations among the responses across different locations and time points.
Reisa Widjaja   +3 more
wiley   +1 more source

Principal Component eigenvalues and eigenvectors of linear variables.

open access: yes, 2014
Principal Component eigenvalues and eigenvectors of linear variables.
Tammy Schmidt (663562)   +4 more
core   +1 more source

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