Results 91 to 100 of about 3,818 (265)
The Hardy–Rellich inequality for polyharmonic operators [PDF]
Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 1999 The Hardy-Rellich inequality given here generalizes a Hardy inequality of Davies, from the case of the Dirichlet Laplacian of a region Ω ⊆ ℝN to that of the higher-order polyharmonic operators with Dirichlet boundary conditions. The inequality yields some immediate spectral information for the polyharmonic operators and also bounds on the trace of the ...
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An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system
Deep Underground Science and Engineering, EarlyView.The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand +5 more
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Composition-Differentiation Operators on Derivative Hardy Spaces
Journal of MathematicsWe first explore conditions under which every weighted composition-differentiation operator on the Hardy space H1D is completely continuous. We then discuss necessary and sufficient conditions for these operators to be Hilbert–Schmidt on the derivative ...
A. Abkar, A. Babaei
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Fredholm Weighted Composition Operator on Weighted Hardy Space
Journal of Function Spaces and Applications, 2013 This paper gives a unified characterization of Fredholm weighted composition operator on a class of weighted Hardy spaces.
Liankuo Zhao
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Ocean Governance and Marine Conservation: Institutional Work as a Lever for Ocean Sustainability
Environmental Policy and Governance, EarlyView.ABSTRACT Ocean governance presents one of the most complex environmental policy challenges of our time, requiring coordinated action across multiple scales, sectors and stakeholder groups. This paper applies institutional work theory to systematically examine how actors create, maintain and disrupt the governance arrangements underpinning ocean ...
Kedar Uttam +3 more
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Grassland Research, EarlyView.In this study, we compared two sampling approaches to assess autumn freezing resistance. Our goal was to determine whether the commonly employed cutting method, which disrupts root‐tissue connectivity, provides a valid measure of true freezing resistance.
Zhengjie Yan +6 more
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Journal of Function Spaces, 2016 The authors establish the two-weight norm inequalities for the one-sided Hardy-Littlewood maximal operators in variable Lebesgue spaces. As application, they obtain the two-weight norm inequalities of variable Riemann-Liouville operator and variable Weyl
Caiyin Niu, Zongguang Liu, Panwang Wang
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Hardy Spaces of Certain Convolution Operator
, 2019 Kyungpook Mathematical Journal ...
Rajbala, Prajapat, Jugal Kishore
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iLABMED, EarlyView.ABSTRACT The Clinical and Laboratory Standards Institute M100 document serves as a cornerstone standard for clinical microbiology laboratories in China. Maintaining the scientific rigor of its predecessors, the 36th edition incorporates updated epidemiological cutoff values, pharmacokinetic/pharmacodynamic data, and clinical efficacy evidence to revise
Kanghong Xu, Qi Wang, Hui Wang
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International Studies of Economics, EarlyView.ABSTRACT In this article, we apply the notion of gravitational fields to commercial attraction, with the aim of providing valuable insights to inform the development of an econophysical methodology. We revisit the traditional notion of gravitational fields, extending it to encompass multiple economic variables and incorporating mobility and production ...
Luigi Capoani +3 more
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