Results 71 to 80 of about 7,694 (263)
Hyman's Method Applied to the General Eigenvalue Problem [PDF]
Mathematics of Computation, 1965 This note is concerned with the problem of finding the roots of the determinanta equation I A + XB I = 0. If B is nonsingular, then the problem is equivalent to finding the roots of the equation I B 'A + XI I 0. The latter problem can be solved by reduction of B'1A to Hessenberg form followed by application of Hyman's method coupled with the Laguerre ...
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Digital Transformation for Eco‐Innovation: Evidence From Agriculture 4.0 Adoption in Wine Firms
Business Strategy and the Environment, EarlyView.ABSTRACT Firms face a fundamental strategic dilemma: how to align digital transformation with environmental sustainability while maintaining competitive advantage. Drawing on the eco‐innovation and green business strategy literature, this paper investigates how Agriculture 4.0 technologies act as enablers of sustainability strategies.
Alessandro Muscio +2 more
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Existence of a principal eigenvalue for the Tricomi problem
Electronic Journal of Differential Equations, 2000 The existence of a principal eigenvalue is established for the Tricomi problem in normal domains; that is, the existence of a positive eigenvalue of minimum modulus with an associated positive eigenfunction.
Daniela Lupo, Kevin R. Payne
doaj
Business Strategy and the Environment, EarlyView.ABSTRACT With the increasing demand for high‐quality agricultural products, the agricultural cold‐chain logistics packaging (ACLP) industry faces significant environmental pressure and circular economy issues. This study analyzes the critical success factors (CSFs) that would enhance ACLP circular economy performance (CEP). The adversarial interpretive
Miao Su +3 more
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Blockchain Technology and the Circular Economy Transition: Associations With Company Performance
Business Strategy and the Environment, EarlyView.ABSTRACT The adoption of circular economy (CE) practices in the private sector has received increasing academic and managerial attention, although the implementation of such practices continues to face significant barriers. Among Industry 4.0 technologies, blockchain has been identified as a potential factor associated with the CE transition.
Josep Llach +3 more
wiley +1 more source
Perturbation behavior of a multiple eigenvalue in generalized Hermitian eigenvalue problems [PDF]
BIT Numerical Mathematics, 2010 The author provides a solution to a question posed by \textit{G. W. Stewart} and \textit{J. Sun} [Matrix perturbation theory. Computer Science and Scientific Computing. Boston etc.: Academic Press, Inc. (1990; Zbl 0706.65013); p. 300] showing that a multiple eigenvalue has different sensitivities under perturbation in a generalized Hermitian eigenvalue
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A Decision‐Making Model for Implementing Green Technology in Sustainable Building Projects
Business Strategy and the Environment, EarlyView.ABSTRACT Green technology (GT) adoption is pivotal for reconciling environmental stewardship with economic viability in the built environment, particularly in resource‐constrained emerging economies. However, empirical evidence on how specific GT drivers actively mitigate adoption barriers remains scarce.
Abdelazim Ibrahim +5 more
wiley +1 more source
The Solutions to Matrix Equation AX=B with Some Constraints
Journal of Applied Mathematics, 2014 Let P be a given Hermitian matrix satisfying P2=I. Using the eigenvalue decomposition of P, we consider the least squares solutions to the matrix equation AX=B with the constraints PX=XP and X*=X.
Chang-Zhou Dong, Yu-Ping Zhang
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A Markov approach to credit rating migration conditional on economic states
Canadian Journal of Statistics, EarlyView.Abstract We develop a model for credit rating migration that accounts for the impact of economic state fluctuations on default probabilities. The joint process for the economic state and the rating is modelled as a time‐homogeneous Markov chain. While the rating process itself possesses the Markov property only under restrictive conditions, methods ...
Michael Kalkbrener, Natalie Packham
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Self‐Similar Blowup for the Cubic Schrödinger Equation
Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT We give a rigorous proof for the existence of a finite‐energy, self‐similar solution to the focusing cubic Schrödinger equation in three spatial dimensions. The proof is computer‐assisted and relies on a fixed point argument that shows the existence of a solution in the vicinity of a numerically constructed approximation.
Roland Donninger, Birgit Schörkhuber
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