Results 1 to 10 of about 38,779 (263)
On Intuitionistic Fuzzy β-Almost Compactness and β-Nearly Compactness [PDF]
The Scientific World Journal, 2015 The concept of intuitionistic fuzzy β-almost compactness and intuitionistic fuzzy β-nearly compactness in intuitionistic fuzzy topological spaces is introduced and studied.
R. Renuka, V. Seenivasan
doaj +2 more sources
Filomat, 2020 We introduce a new covering property, defined in terms of order types of sequences of open sets, rather than in terms of cardinalities. The most general form depends on two ordinal parameters.
Lipparini, Paolo, Lipparini, P
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The Kolmogorov–Riesz compactness theorem
, 2010 We show that the Arzelà–Ascoli theorem and Kolmogorov compactness theorem both are consequences of a simple lemma on compactness in metric spaces. Their relation to Helly's theorem is discussed.
Helge Holden
exaly +2 more sources
Land, 2022 China’s rapid urbanization has been accompanied by serious urban sprawl. Instead of measuring the physical urban boundaries (PUBs), most of existing studies in China rely on yearbook statistics to describe the growth of urbanized area; therefore, the ...
Xiaoling Dai +3 more
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Existence of critical elliptic systems with boundary singularities [PDF]
Opuscula Mathematica, 2013 In this paper, we are concerned with the existence of positive solutions of the following nonlinear elliptic system involving critical Hardy-Sobolev exponent \begin{equation*}\label{eq:1}(*) \left\{ \begin{array}{lll} -\Delta u= \frac{2\alpha}{\alpha ...
Jianfu Yang, Yimin Zhou
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The inverted U-shaped effect of urban hotspots spatial compactness on urban economic growth [PDF]
Royal Society Open Science, 2019 The compact city, as a sustainable concept, is intended to augment the efficiency of urban function. However, previous studies have concentrated more on morphology than on structure. The present study focuses on urban structural elements, i.e.
Weipan Xu +4 more
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Fire, 2023 The semiphysical method is presently the most widely used for predicting litter moisture content, but it produces some errors. These are mainly due to the simplification of the water loss process and not accounting for the fuelbed structure, which can ...
Yunlin Zhang
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Analysis of the Mechanism of Ground Fissures in the Nairobi–Malaba Railway Rift Valley Area in Kenya
Frontiers in Earth Science, 2022 During the rainy season from March to May 2018, four ground fissures were generated in the rift valley area along the first phase of the Nairobi–Malaba Railway in Kenya, among which the ground fissures B3 highway, DK76, and DK77 were larger in scale ...
Bing Hao +6 more
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An extension theorem in SBV and an application to the homogenization of the Mumford-Shah functional in perforated domains [PDF]
, 2011 The aim of this paper is to prove the existence of extension operators for SBV functions from periodically perforated domains.
Filippo Cagnetti (4464373) +9 more
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Blow-up solutions with minimal mass for nonlinear Schrödinger equation with variable potential
Advances in Nonlinear Analysis, 2021 This paper studies the mass-critical variable coefficient nonlinear Schrödinger equation. We first get the existence of the ground state by solving a minimization problem.
Pan Jingjing, Zhang Jian
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