Results 61 to 70 of about 6,982,939 (355)

Mather sets for sequences of matrices and applications to the study of joint spectral radii

open access: yes, 2011
The joint spectral radius of a compact set of d-times-d matrices is defined ?to be the maximum possible exponential growth rate of products of matrices drawn from that set. In this article we investigate the ergodic-theoretic structure of those sequences
Morris, Ian D.
core   +1 more source

Wilf’s conjecture and Macaulay’s theorem [PDF]

open access: yesJournal of the European Mathematical Society (Print), 2017
Let S $\subseteq$ N be a numerical semigroup with multiplicity m = min(S \ {0}), conductor c = max(N \ S) + 1 and minimally generated by e elements. Let L be the set of elements of S which are smaller than c.
S. Eliahou
semanticscholar   +1 more source

Energy, Entropy, Constraints, and Creativity in Economic Growth and Crises

open access: yesEntropy, 2020
The neoclassical mainstream theory of economic growth does not care about the First and the Second Law of Thermodynamics. It usually considers only capital and labor as the factors that produce the wealth of modern industrial economies.
Reiner Kümmel, Dietmar Lindenberger
doaj   +1 more source

Advances in Radiative Heat Transfer: Bridging Far‐Field Fundamentals and Emerging Near‐Field Innovations

open access: yesAdvanced Functional Materials, EarlyView.
This review synthesizes the evolution of radiative heat transfer, emphasizing the transition from far‐field to near‐field regimes. Traditional frameworks, such as Planck's law, are revisited alongside modern innovations like fluctuational electrodynamics. Applications span nanoscale thermal management, energy harvesting, and thermophotovoltaic systems.
Ambali Alade Odebowale   +6 more
wiley   +1 more source

Retracted: Can the chemical industry solve the climate change?On the role of human energy production, renewable energies, and the potential of chemistry as a solution provider

open access: yesChemie Ingenieur Technik, EarlyView., 2023
Let us consider an alternative perspective on climate change: The sum of solar radiation and heat generated by human activity result in a net energy input of 1.96 times that of the Sun on the Earth's surface. The expanding global population is expected to exacerbate this issue. Potential solutions are proposed, including replacement and heat recycling.
Martin Bertau, Gerald Steiner
wiley   +1 more source

Uma revisão das controvérsias sobre a Equação de Cambridge [PDF]

open access: yesNova Economia, 2005
The objective of this article is to make a critical evaluation of the controversies about the Cambridge Equation both in the initial phase - when Pasinetti, Kaldor, Meade, Samuelson and Modigliani got involved - and in the second round that followed the ...
José Luís Oreiro
doaj  

Applications of a New q-Difference Operator in Janowski-Type Meromorphic Convex Functions

open access: yesJournal of Function Spaces, 2021
The main aim of the present article is the introduction of a new differential operator in q-analogue for meromorphic multivalent functions which are analytic in punctured open unit disc.
Bakhtiar Ahmad   +5 more
doaj   +1 more source

Active Thermal Field Integration for Marangoni‐Driven Salt Rejection and Water Collection

open access: yesAdvanced Functional Materials, EarlyView.
A thermal gradient fabric (TGF) evaporator with an auxiliary active thermal field can simultaneously increase evaporation rates and achieve long‐term salt rejection. The auxiliary active thermal field is well integrated with solar energy to construct moderate, extensive, and circulating Marangoni flow for salt rejection.
Can Ge   +12 more
wiley   +1 more source

TANGENT APPROXIMATION BY SOLUTIONS OF THE CONVOLUTION EQUATION

open access: yesПроблемы анализа, 2022
The article for the first time studies the approximation of a function together with its derivatives on the real line by solutions of a multidimensional convolution equation of the form 𝑔 * 𝑇 = 0, where 𝑇 is a given compactly supported radial ...
V. V. Volchkov, Vit. V. Volchkov
doaj   +1 more source

Minimal graphic functions on manifolds of non-negative Ricci curvature [PDF]

open access: yes, 2013
We study minimal graphic functions on complete Riemannian manifolds $\Si$ with non-negative Ricci curvature, Euclidean volume growth and quadratic curvature decay.
Ding, Qi, Jost, J., Xin, Y. L.
core  

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