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5,626 results on '"LUO Peng"'

66. Clinical nutrition service capacity of 445 secondary or above hospitals in Sichuan, China: The 2021 annual survey

Author

Mu, Dongyu, Jinli, Xian, Li, Xuemei, Jiang, Qinyi, Zhang, Lili, Zou, Zhengli, Huang, Xiaoming, Zheng, Lihua, Chen, Xi, Jiang, Chenglu, Lv, Mingyang, Kuang, Ming, Yang, Dong, Yuan, Lin, Shi, Cui, Yang, Shumei, Chen, Xiang, Tao, Xin, Yang, Yurui, Zhang, Yan, Li, Ping, Luo, Peng, Wu, Haiyan, Xiong, Lilong, Zhang, Ting, Wang, Min, Zhang, Zeyu, Zhang, Junyi, Hu, Chunyu, Liu, Guanghua, Wang, Huilan, Wang, Xiaoling, Feng, Yao, Zhao, Xiaorong, Chen, Jing, Rao, Zhiyong, Liu, Yuan, Li, Jian, and Hu, Wen

Published
2023

67. Turnpike properties for stochastic backward linear-quadratic optimal problems

Author

Chen, Yuyang and Luo, Peng

Subjects
Mathematics - Optimization and Control
Abstract

This paper deals with the long time behavior of the optimal solution of stochastic backward linear-quadratic optimal control problem over the finite time horizon. Both weak and strong turnpike properties are established under appropriate conditions, including stabilizability condition. The key ingredients are to formulate the corresponding static optimization problem and determine the correction processes. However, our techniques are quite different from stochastic (forward) linear-quadratic case.

Published
2023

71. Well-posedness for a class of mean field type FBSDEs and classical solutions of related master equations

Author

Hua, Tianjiao and Luo, Peng

Subjects
Mathematics - Probability
Abstract

In this paper, we study a class of mean field type FBSDEs. We propose a class of motonotinity conditions, under which we show the uniformly Lipschitz continuity of the decoupling field and obtain the existence and uniqueness of solution. We further provide a representation result for the solution and the decoupling field. Finally, we obtain the regularity of the decoupling field and establish global well-posedness of classical solutions to related master equations.

Published
2023

76. Stochastic linear-quadratic optimal control problems with multi-dimensional state and non-Markovian regime switching

Author

Chen, Yuyang and Luo, Peng

Subjects
Mathematics - Optimization and Control
Abstract

This paper investigates the stochastic linear-quadratic (LQ, for short) optimal control problems with non-Markovian regime switching in a finite time horizon where the state equation is multi-dimensional. Similar to the classical stochastic LQ problems, we establish the relationship between the stochastic LQ optimal control problems with non-Markovian regime switching and the related extended stochastic Riccati equations. To solve the extended stochastic Riccati equations, we construct a monotone Piccard iterative sequence and present the link bewteen this sequence and solutions of a family of forward-backward stochastic differential equations. Relying on $L^p$ estimates for FBSDEs, we show that the extended stochastic Riccati equation has a solution. This partially addresses one question left in Hu et al. (Ann. Appl. Probab. 32(1): 426-460, 2022). Finally, the stochastic LQ optimal control problems with non-Markovian regime switching is solved.

Published
2023

77. A unified approach to global solvability for FBSDEs with diagonal generators

Author

Hua, Tianjiao and Luo, Peng

Subjects
Mathematics - Probability, 60H30, 93E20
Abstract

In this paper, we study the global solvability of multidimensional forward-backward stochastic differential equations (FBSDEs) with diagonally Lipschitz, quadratic or super-quadratic generators. Under a certain "monotonicity" condition, we provide a unified approach which shows that there exists a decoupling field that is uniformly Lipschitz in its spatial variable. This decoupling field is closely related to bounded solution to an associated characteristic BSDE. For Lipschitz case, we provide some extensions and investigate $L^p$-solution and $L^p$ estimates. Our results gives a positive answer to a question proposed in Yong (Banach Center Publ. 122: 255-286, 2020). Applications to stochastic optimal controls and stochastic differential games are investigated.

Published
2022

82. Qualitative analysis for Moser-Trudinger nonlinearities with a low energy

Author

Luo, Peng, Pan, Kefan, and Peng, Shuangjie

Subjects
Mathematics - Analysis of PDEs
Abstract

We are concerned with the Moser-Trudinger problem \begin{equation*} \begin{cases} -\Delta u=\lambda ue^{u^2}~~&\mbox{in}~\Omega,\\[0.5mm] u>0 ~~ &{\text{in}~\Omega},\\[0.5mm] u=0~~&\mbox{on}~\partial \Omega, \end{cases} \end{equation*} where $\Omega \subset \mathbb{R}^2$ is a smooth bounded domain and $\lambda>0$ is sufficiently small. Qualitative analysis for Moser-Trudinger nonlinearities has been studied in recent decades, however there is still a lot of clarity about this issue, even for a low energy. The reason is that this problem is a critical exponent for dimension two and will lose compactness. Here by using a variety of local Pohozaev identities, we qualitatively analyze the positive solutions of Moser-Trudinger problem with a low energy, which contains the Morse index, non-degeneracy, asymptotic behavior, uniqueness and symmetry of solutions. Since the fundamental solution of $-\Delta$ in $\Omega \subset \mathbb{R}^2$ is in logarithmic form and the corresponding bubble is exponential growth, more precise asymptotic behavior of the solutions is needed, which is of independent interest. Moreover, to obtain our results, some ODE's theory will be used to a prior estimate of the solutions and some elliptic theory in dimension two will play a crucial role.

Published
2022

83. Crystal structure of 4-(4-(N-(5,6-dimethoxypyrimidin-4-yl)sulfamoyl) phenylcarbamoyl)-2,6-dimethoxyphenyl acetate, C23H24N4O9S

Author

Pan Wei-Gao, Zhao Zhi-Dong, Luo Peng, Lin Cui-Wu, and Miao Jian-Hua

Subjects
Physics, QC1-999, Crystallography, QD901-999
Abstract

C23H24N4O9S, triclinic, P1̄ (no. 2), a = 8.297(1) Å, b = 11.199(1) Å, c = 13.876(2) Å, α = 88.856(2)°, β = 76.540(2)°, γ = 80.098(2)°, V = 1235.0 Å3, Z = 2, Rgt(F) = 0.0405, wRref(F2) = 0.1084, T = 296 K.

Published
2012
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87. Adaptive Switching Control for Wireless Power Transfer Systems Based on Identification

Author

Li, Shuaiqi, Li, Zhifan, Wang, Xiaolong, Luo, Peng, Huang, Qiming, Deng, Qijun, Liu, Jiangtao, Madawala, Udaya, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Tan, Kay Chen, Series Editor, Cai, Chunwei, editor, Qu, Xiaohui, editor, Mai, Ruikun, editor, Zhang, Pengcheng, editor, Chai, Wenping, editor, and Wu, Shuai, editor

Published
2024
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88. A Rapid Evaluation Method of Fatigue Life for Structures Based on Notch Geometry Parameters

Author

Luo, Peng, Li, Jian, Yu, Ming, Chen, Huanhuan, Ai, Xing, Chinese Society of Aeronautics and Astronautics, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, and Xu, Jinyang, Editorial Board Member

Published
2024
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