Results 111 to 120 of about 1,874,459 (287)

Firms' Green Responses to Environmental Regulations: A Three‐Dimensional Concurrent Engineering Perspective

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study investigates companies' responses to energy efficiency policies, focusing on mandatory and voluntary regulations that create a complex landscape for businesses to navigate. Using a sample of 1473 firms across 29 European countries (2002–2018), we explore the impact of legislation on green redesign—operationalized through ...
Thomas Alexopoulos   +3 more
wiley   +1 more source

Asymptotic behavior of orthogonal polynomials primitives [PDF]

open access: yes, 2001
7 pages, no figures.-- MSC2000 codes: 42C05, 33C25.We study the zero location and the asymptotic behavior of the primitives of the standard orthogonal polynomials with respect to a finite positive Borel measure concentrate on [−1,1].Research of second (H.
Urbina, Wilfredo   +5 more
core   +1 more source

Differential coefficients of orthogonal matrix polynomials

open access: yesJournal of Computational and Applied Mathematics, 2006
The authors are interested in the following type of formulas: given a sequence of orthogonal polynomials \(\{P_n\}\), find the coefficients \(R_n(z)\) and \(S_n(z)\) in the expression \[ P_n'(z)=R_n(z) P_{n}(z)+S_n(z) P_{n-1}(z) \] (lowering operator), or with \(P_{n-1}\) in the right hand side replaced by \(P_{n+1}\) (raising operator).
Duran, Antonio J., Ismail, Mourad E.H.
openaire   +3 more sources

Box–Behnken optimization and ANN‐ANFIS integrated modelling for transesterification using thermally activated basic oxygen furnace slag catalyst

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Global energy demand and environmental concerns have intensified the search for renewable and sustainable energy sources. This study thus, focuses on optimizing the transesterification process of waste cooking oil (WCO) using thermally activated basic oxygen furnace slag catalyst calcined at 850°C (BOF 850). The optimization and modelling were
Johra S. Ali, Hillary L. Rutto
wiley   +1 more source

An note on the maximization of matrix valued Hankel determinants with application [PDF]

open access: yes
In this note we consider the problem of maximizing the determinant of moment matrices of matrix measures. The maximizing matrix measure can be characterized explicitly by having equal (matrix valued) weights at the zeros of classical (one dimensional ...
Dette, Holger, Studden, W. J.
core  

Multivariate Jacobi and Laguerre polynomials, infinite-dimensional extensions, and their probabilistic connections with multivariate Hahn and Meixner polynomials [PDF]

open access: yes, 2011
Multivariate versions of classical orthogonal polynomials such as Jacobi, Hahn, Laguerre, Meixner are reviewed and their connection explored by adopting a probabilistic approach.
Robert C. Griffiths   +3 more
core   +1 more source

A global latitudinal decline in breeding site fidelity emerges from a single biome

open access: yesEcography, EarlyView.
Species that breed in multiple years can either return to the same location to reproduce between seasons or disperse to a different location. Previous studies have shown that breeding site fidelity varies with species‐ and individual‐specific traits, but much of the observed variation remains unexplained.
Peter Santema   +4 more
wiley   +1 more source

Darboux transformation of symmetric Jacobi matrices and Toda lattices

open access: yesFrontiers in Applied Mathematics and Statistics
Let J be a symmetric Jacobi matrix associated with some Toda lattice. We find conditions for Jacobi matrix J to admit factorization J = LU (or J = 𝔘𝔏) with L (or 𝔏) and U (or 𝔘) being lower and upper triangular two-diagonal matrices, respectively.
Ivan Kovalyov, Oleksandra Levina
doaj   +1 more source

Uniform approximation of eigenvalues in Laguerre and Hermite beta-ensembles by roots of orthogonal polynomials [PDF]

open access: yes
We derive strong uniform approximations for the eigenvalues in general Laguerre and Hermite beta-ensembles by showing that the maximal discrepancy between the suitably scaled eigenvalues and roots of orthogonal polynomials converges almost surely to zero
Dette, Holger, Imhof, Lorens A.
core  

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