Results 21 to 30 of about 467,435 (242)

Characterization of quadratic growth of extended-real-valued functions

open access: yesJournal of Inequalities and Applications, 2016
This paper shows that the sharpest possible bound in the second-order growth condition of a proper lower semicontinuous function can be attained under some assumptions. We also establish a relationship among strong metric subregularity, quadratic growth,
Jin jiang Wang, Wen Song
doaj   +1 more source

Metric regularity and systems of generalized equations [PDF]

open access: yes, 2008
The paper is devoted to a revision of the metric regularity property for mappings between metric or Banach spaces. Some new concepts are introduced: uniform metric regularity and metric multi-regularity for mappings into product spaces, when each ...
Kruger, Alexander Y.   +3 more
core   +1 more source

Directional regularity and metric regularity

open access: yes, 2020
For general constraint systems in Banach spaces, we present the directional stability theorem based on the appropriate generalization of the directional regularity condition, suggested earlier in [A. V. Arutyunov and A. F. Izmailov, Math. Oper. Res., 31 (
Arutyunov A.V.   +2 more
core   +2 more sources

The association between general practitioner regularity of care and ‘high use’ hospitalisation

open access: yesBMC Health Services Research, 2020
Background In Australia, as in many high income countries, there has been a movement to improve out-of-hospital care. If primary care improvements can yield appropriately lower hospital use, this would improve productive efficiency.
Rachael E. Moorin   +3 more
doaj   +1 more source

Extensions of metric regularity

open access: yes, 2009
This article is devoted to some extensions of the metric regularity property for mappings between metric or Banach spaces. Several new concepts are investigated in a unified manner: uniform metric regularity, metric regularity along a subspace, metric ...
Kruger, Alexander, Dmitruk, Andrei
core   +1 more source

Almost uniform domains and Poincaré inequalities

open access: yesTransactions of the London Mathematical Society, 2021
Here we show existence of many subsets of Euclidean spaces that, despite having empty interior, still support Poincaré inequalities with respect to the restricted Lebesgue measure.
Sylvester Eriksson‐Bique, Jasun Gong
doaj   +1 more source

Fractional Maximal Functions in Metric Measure Spaces

open access: yesAnalysis and Geometry in Metric Spaces, 2013
We study the mapping properties of fractional maximal operators in Sobolev and Campanato spaces in metric measure spaces. We show that, under certain restrictions on the underlying metric measure space, fractional maximal operators improve the Sobolev ...
Heikkinen Toni   +3 more
doaj   +1 more source

Anisotropic stars via embedding approach in Brans–Dicke gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
In the present article, the solution of the Einstein–Maxwell field equations in the presence of a massive scalar field under the Brans-Dicke (BD) gravity is obtained via embedding approach, which describes a charged anisotropic strange star model.
S. K. Maurya   +4 more
doaj   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo   +9 more
wiley   +1 more source

Estimating the weight of metric minimum spanning trees in sublinear time [PDF]

open access: yes, 2008
In this paper we present a sublinear-time $(1+\varepsilon)$-approximation randomized algorithm to estimate the weight of the minimum spanning tree of an $n$-point metric space. The running time of the algorithm is $\widetilde{\mathcal{O}}(n/\varepsilon^{\
Christian Sohler   +3 more
core   +1 more source

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