Results 51 to 60 of about 965 (262)

Hyperbolic systems of conservation laws

open access: yesRevista Matemática Complutense, 1999
This is a survey on the mathematical theory of hyperbolic systems of conservation laws. The paper, written in Italian language, corresponds to the text of a conference held at the XVI Congress of the Italian Mathematical Union in 1999. Addressing to non-experts, the author gives a very clear exposition of results and problems connected with the one ...
  +7 more sources

Understanding the Indirect Effects of Sustainable HRM: Cognitive and Relational Pathways to Engagement and Performance

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This paper examines how sustainable human resource management (SHRM) influences employee engagement and performance through distinct cognitive and relational mechanisms. While previous research has demonstrated positive associations between SHRM and employee outcomes, the processes through which these effects occur remain insufficiently ...
Daniel Roque Gomes   +4 more
wiley   +1 more source

Invariant Solutions and Conservation Laws of the Variable-Coefficient Heisenberg Ferromagnetic Spin Chain Equation

open access: yesFrontiers in Physics, 2020
The variable-coefficient Heisenberg ferromagnetic spin chain (vcHFSC) equation is investigated using the Lie group method. The infinitesimal generators and Lie point symmetries are reported.
Na Liu, Na Liu
doaj   +1 more source

Riemann problem for a 2 × 2 $2\times 2$ hyperbolic system with time-gradually-degenerate damping

open access: yesBoundary Value Problems, 2023
This paper is focused on the Riemann problem for a 2 × 2 $2\times 2$ hyperbolic system of conservation laws with a time-gradually-degenerate damping. Two kinds of non-self-similar solutions involving the delta-shocks and vacuum are obtained using the ...
Shiwei Li
doaj   +1 more source

Global Energy Corporations and Climate Change: The Role of Formal and Informal Institutions in Shaping Climate Change Risk Disclosure

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study examines climate change risk disclosure in the global energy sector, where firms face intense stakeholder scrutiny and legitimacy pressures. We develop a novel domain‐specific textual analysis measure to capture climate change risk disclosures, improving on prior approaches based on generic environmental terminology.
Khaldoon Albitar, Ali Meftah Gerged
wiley   +1 more source

Weak asymptotic solution for a non-strictly hyperbolic system of conservation laws-II

open access: yesElectronic Journal of Differential Equations, 2016
In this article we introduce a concept of entropy weak asymptotic solution for a system of conservation laws and construct the same for a prolonged system of conservation laws which is highly non-strictly hyperbolic.
Manas Ranjan Sahoo, Harendra Singh
doaj  

A variant of the method of characteristics

open access: yesComputer Assisted Methods in Engineering and Science, 2023
A variant of the method of characteristics for hyperbolic conservation laws is proposed in this paper. It is based on the time interpolation instead of space interpolation as in the standard method of characteristics.
Mario Šayar   +2 more
doaj  

A new central-upwind scheme for solving the shallow water equations [PDF]

open access: yesAUT Journal of Mathematics and Computing
We have conducted a study where we applied one-dimensional central-upwind methods to estimate solutions of the Saint-Venant (SV) system. Our approach carefully considers the source terms associated with bottom topography.
Rooholah Abedian
doaj   +1 more source

From Green Governance to Biodiversity Strategy: The Role of Environmentally Experienced Directors in Chinese Firms

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study investigates how directors with environmental protection (EP) backgrounds influence corporate biodiversity concern (BIO) among Chinese A‐share listed firms from 2008 to 2023. Drawing on Upper Echelons Theory, we argue that directors' environmental expertise shapes firms' biodiversity strategies.
Chengming Huang   +2 more
wiley   +1 more source

Shock Waves in Gas Dynamics [PDF]

open access: yesSurveys in Mathematics and its Applications, 2007
Shock wave theory was studied in literature by many authors. This article presents a survey with references about various topics related to shock waves: Hyperbolic conservation laws, Well-posedness theory, Compactness theory, Shock and reaction-diffusion
Abdolrahman Razani
doaj  

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