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Jackson-type and Bernstein-type inequalities for multipliers on Herz-type Hardy spaces

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Science China Mathematics 2009年第3期52卷 481-492页

作者： XIE LinSen lan jiacheng lan SenHua YAN DunYan Department of Mathematics Lishui UniversityLishui 323000China Graduate University of the Chinese Academy of Sciences Beijing 100080China

We establish Jackson-type and Bernstein-type inequalities for multipliers on Herz-type Hardy spaces. These inequalities can be applied to some important operators in Fourier analysis, such as the Bochner-Riesz multipl... 详细信息

关键词： Herz-type Hardy space multiplier Jackson-type inequality Bernstein-type inequality 42B15 42B20

THE FRACTIONAL MULTILINEAR SINGULAR INTEGRAL WITH VARIABLE KERNELS ON HARDY SPACES

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Analysis in Theory and Applications 2006年第1期22卷 81-90页

作者： Zheng Yang jiacheng lan Lishui University China

The authors discuss Lipschitz boundedness for a class of fractional multilinear operators with variable kernels. It is obtained that these operators are both Lipschitz bounded from L^p to H^q.

关键词： variable kernel multilinear fractional integral space Aβ (R^n) Hardy space

THE BOUNDEDNESS FOR A CLASS OF ROUGH FRACTIONAL INTEGRAL OPERATORS ON VARIABLE EXPONENT LEBESGUE SPACES

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Analysis in Theory and Applications 2012年第3期28卷 286-293页

作者： Huiling Wu jiacheng lan Lishui University China

In this paper, we will discuss the behavior of a class of rough fractional integral operators on variable exponent Lebesgue spaces,and establish their boundedness from Lp1 （＇）（Rn） to Lp2（）（Rn）.

关键词： fractional integral rough kernel variable exponent Lebesgue space

Impact of Vegetation Restoration on Soil Fungal Community Structure in Karst Rocky Desertification Areas

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Meteorological and Environmental Research 2024年第2期15卷 55-61页

作者： Shasha WANG jiacheng lan School of Karst Science/State Engineering Technology Institute for Karst Desertification Control Guizhou Normal UniversityGuiyang 550001China

In this paper,managed forest(MF)and natural forest(NF)in the Huajiang Demonstration Zone of Guanling,Guizhou were selected as research objects,and cropland(CL)was taken as ***-throughput sequencing technology was used to study the characteristics of fungal community composition and species diversity in the surface(0-10 cm)soil of each restoration measure,in order to reveal the dominant soil fungal groups and fungal community composition in karst rocky desertification areas,which was conducive to a more comprehensive understanding of the soil conditions of different vegetation restoration *** has shown that vegetation restoration significantly affected the diversity of soil fungal community,with significant increases in Sob index,Ace index,and Chao *** vegetation restoration has significantly changed the composition of fungal *** dominant fungi in the CL topsoil are Sordariomycetes(62.28%),Dothideomycetes(12.34%),and Eurotiomycetes(9.12%);the dominant fungi in the MF soil are Sordariomycetes(45.05%),Dothideomycetes(14.74%),and Mortierellomycetes(10.40%);the dominant fungi in the NF soil are unclassified fungal community(26.38%),Sordariomycetes(19.78%),and Agaricomycetes(13.82%).Vegetation restoration has changed the key fungal groups in the ***,Fusarium,and Setophoma are the key dominant fungal groups in CL soil;Dioszegia is key dominant fungal group in MF soil;c_unclassified_k_Fungi,p_unclassified_k_Fungi,o_unclassified_k_Fungi,f_unclassified_k_Fungi,g_unclassified_k_Fungi,Teichospora,and Diaporthe are key dominant fungal groups in NF soil.

关键词： Karst rocky desertification Vegetation restoration Soil fungal community Fungal diversity