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Variable integral and smooth exponent Besov spaces associated to non-negative self-adjoint operators
[期刊论文] 作者：Jingshi XU,
来源：中国数学前沿 年份：2020
We introduce the variable integral and the smooth exponent Besov spaces associated to non-negative self-adjoint operators.Then we give the equivalent norms via...
[期刊论文] 作者：Guangyu XU,
来源：数学年刊B辑（英文版） 年份：2020
The author deals with a semi-linear edge-degenerate parabolic equation,and proves that the solution increases exponentially under the initial energy J(uo) ≤ d,...
[期刊论文] 作者：Xu Xiujun,
来源：北京周报（英文版） 年份：2020
The virtual summit of the emergingmarket bloc that groups Brazil, Russia, India, China, and South Africa (BRICS) convened on November 17. rnAgainst the backdrop...
[期刊论文] 作者：Xu Feibiao,
来源：北京周报（英文版） 年份：2020
This winter is going to be an extremely cold one. The United States, some European countries and a few others have encountered a third surge of the novel corona...
[期刊论文] 作者：Zoe Xu,
来源：看世界 年份：2020
守护富内斯山谷的圣玛格达莱纳教堂 《阿尔卑斯山的少女》是我幼时最喜爱的童话之一，海蒂日思夜想的家乡成为了我对世界最初的好奇。后来陆续去了不同国家的阿尔卑斯山区，包括海蒂魂牵梦萦的故乡瑞士，但那份期待似乎总是没有被填满—直到遇见多洛米蒂（Dolomites），......
[期刊论文] 作者：Yi-hong XU,
来源：应用数学学报（英文版） 年份：2020
A new kind of tangent derivative,M-derivative,for set-valued function is introduced with help of a modified Dubovitskij-Miljutin cone.Several generalized pseudo...
[期刊论文] 作者：Gao Xu,
来源：科学与财富 年份：2020
Abstract： This paper aims at the discussion on innovation and practice of enterprise’s economic management in the view of knowledge economy. First， this paper analyzes the significance of enterprise’s...
[期刊论文] 作者：Xu shuang,
来源：科学导报·学术 年份：2020
Abstract：Immersion means to let the public forget the real world and focus only on the scene in front of them.Immersive theory originally originated from language teaching practices，such as immersive...
[期刊论文] 作者：Xu Hou,
来源：国家科学评论（英文版） 年份：2020
The development of structural materials has brought impetus to every industrial revolution.The value and uses of structural materials follow primarily from thei...
Fully Coupled Forward-Backward Stochastic Functional Differential Equations and Applications to Quad
[期刊论文] 作者：XU Xiaoming,
来源：系统科学与复杂性学报（英文版） 年份：2020
This paper considers the fully coupled forward-backward stochastic functional differential equations(FBSFDEs)with stochastic functional differential equations a...
[期刊论文] 作者：Xu Feibiao,
来源：北京周报（英文版） 年份：2020
As one of the most influential inta-tional forums, the World Economic Forum (WEF) has often been a bell-wether for world economic development and global coopera...
[期刊论文] 作者：by Jay Xu,
来源：中国画报（英文版） 年份：2020
Emperor Qianlong （1711-1799） of China’s Qing Dynasty （1644-1911） is widely remembered as one of the most prolific imperial collectors. Apart from being a well-read poet， the emperor was celebrated for...
[期刊论文] 作者：by Xu Feibiao,
来源：China Pictorial 年份：2020
As China’s COVID-19 fight resulted in encouraging numbers after mid-March， the virus spread around the whole world， with the epicenter shifting to Europe and the United States. The virus knows no bord...
[期刊论文] 作者：by Xu Shuyuan,
来源：China Pictorial 年份：2020
The spread of the virus respects neither borders nor race. Solidarity and cooperation are the most powerful weapons to fight the COVID-19 pandemic. The COVID-19 outbreak caught everyone by surprise b...
[期刊论文] 作者：by Xu Feibiao,
来源：China Pictorial 年份：2020
On December 13， 2019， after nearly 20 months of arduous negotiations， China and the United States reached a consensus on the text of a phase-one economic and trade agreement. The agreement clearly ben...
[期刊论文] 作者：by Xu Shuyuan,
来源：China Pictorial 年份：2020
Since the outbreak of the novel coronavirus epidemic， China has taken unprecedented measures under the leadership of President Xi Jinping， also general secretary of the Communist Party of China （CPC）...
[期刊论文] 作者：By XU XIUJUN,
来源：CHINA TODAY 年份：2020
IN response to changes in China’s development level， environment， and conditions， Chinese President Xi Jinping recently called for the country to nurture a new development pattern that takes the domes...
[期刊论文] 作者：By XU GANG,
来源：CHINA TODAY 年份：2020
T HE year 2020 turns out to be a year full of uncertainties. While relaxation of U.S.-Iran tensions and the first-stage agreement of China-U.S. trade negotiations provided some momentarily relief to t...
[期刊论文] 作者：By XU HAN,
来源：CHINA TODAY 年份：2020
AT nine o’clock every evening in Urumqi， Xinjiang Uygur Autonomous Region， while the remaining rays of daylight are still lingering along the western horizon， Hu Jing and her mother walk around the co...
[期刊论文] 作者：Gao Xu,
来源：大经贸·创业圈 年份：2020
Abstract: Whether in the past or in the current information age, the accounting industry plays an important role in people's daily life and social employment. Accounting can be applied in all walks of...
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