Zhi Li

ORCID: 0000-0003-0112-5115
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About
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Research Areas
  • Nonlinear Differential Equations Analysis
  • Stochastic processes and financial applications
  • Stability and Controllability of Differential Equations
  • Fuzzy Systems and Optimization
  • Differential Equations and Numerical Methods
  • Nonlinear Partial Differential Equations
  • Economic theories and models
  • Point processes and geometric inequalities
  • Functional Equations Stability Results
  • Fractional Differential Equations Solutions
  • Differential Equations and Boundary Problems
  • Statistical Distribution Estimation and Applications
  • Advanced Mathematical Physics Problems
  • Insurance, Mortality, Demography, Risk Management
  • Advanced Differential Geometry Research
  • Risk and Portfolio Optimization
  • Matrix Theory and Algorithms
  • Probabilistic and Robust Engineering Design
  • Fluid Dynamics and Turbulent Flows
  • Financial Risk and Volatility Modeling
  • Radiative Heat Transfer Studies
  • Gas Dynamics and Kinetic Theory
  • Mathematical and Theoretical Epidemiology and Ecology Models
  • Numerical methods in inverse problems
  • Geometric Analysis and Curvature Flows

Yangtze University
2017-2025

South China Normal University
2020

Guangdong Ocean University
2019

Institute of Physics
2001

10.1016/j.cnsns.2025.108760 article FR Communications in Nonlinear Science and Numerical Simulation 2025-03-01

This paper investigates a class of distributed fractional-order stochastic differential equations driven by fractional Brownian motion with Hurst parameter 1/2<H<1. By employing the Picard iteration method, we rigorously prove existence and uniqueness solutions Lipschitz conditions. Furthermore, leveraging Girsanov transformation argument within L2 metric framework, derive quadratic transportation inequalities for law strong solution to considered equations. These results provide...

10.3390/sym17050650 article EN Symmetry 2025-04-25

The averaging principle for BSDEs and one-barrier RBSDEs, with Lipschitz coefficients, is investigated. An averaged the original proposed, as well their solutions are quantitatively compared. Under some appropriate assumptions, to systems can be approximated by stochastic in sense of mean square.

10.1155/2021/6615989 article EN cc-by Discrete Dynamics in Nature and Society 2021-03-04

10.1016/j.cnsns.2023.107122 article EN Communications in Nonlinear Science and Numerical Simulation 2023-01-14

This paper develops a new method to deal with the problem of identifying unknown source in Poisson equation. We obtain regularization solution by Tikhonov super-order penalty term. The order optimal error bounds can be obtained for various smooth conditions when we choose parameter discrepancy principle and process is uniform. Numerical examples show that proposed effective stable.

10.1142/s0219876219500300 article EN International Journal of Computational Methods 2019-04-08

Abstract This manuscript focuses on a class of stochastic functional differential equations driven by time-changed Brownian motion. By utilizing the Lyapunov method, we capture some sufficient conditions to ensure that solution for considered equation is η -stable in p th moment sense. Subsequently, present new criteria -stability mean square using Itô formula and proof contradiction. Finally, provide examples demonstrate effectiveness our main results.

10.1186/s13660-024-03128-y article EN cc-by Journal of Inequalities and Applications 2024-04-23

10.1016/j.cnsns.2024.108228 article EN Communications in Nonlinear Science and Numerical Simulation 2024-11-01

10.1016/j.chaos.2022.112698 article EN Chaos Solitons & Fractals 2022-09-27

In this paper, we classify $3$-dimensional complete self-shrinkers in Euclidean space $\mathbb R^{4}$ with constant squared norm of the second fundamental form $S$ and $f_{4}$.

10.48550/arxiv.2003.11464 preprint EN other-oa arXiv (Cornell University) 2020-01-01

Being base on the Girsanov theorem for multifractional Brownian motion, which can be constructed by derivative operator, we establish Harnack inequalities a class of stochastic functional differential equations driven subordinate motion an approximation technique.

10.7153/mia-2021-24-80 article EN Mathematical Inequalities & Applications 2021-01-01

10.1016/j.jmaa.2023.127336 article EN Journal of Mathematical Analysis and Applications 2023-04-20

<abstract><p>In this paper, we investigate a class of stochastic functional differential equations driven by the time-changed Lévy process. Using Lyapunov technique, obtain some sufficient conditions to ensure that solutions considered are $ h $-stable in p $-th moment sense. Subsequently, using Itô formula and proof reduction ad absurdum, capture new criteria for $-stability mean square equations. In end, analyze illustrative examples show interest usefulness major...

10.3934/math.20231168 article EN cc-by AIMS Mathematics 2023-01-01

<abstract><p>Uncertain differential equation is a type of driven by canonical Liu process. By applying some uncertain theories, the sufficient conditions exponential stability in mean square obtained for nonlinear equations. At same time, new criteria ensuring existence global attracting sets considered equations are presented.</p></abstract>

10.3934/math.20231366 article EN cc-by AIMS Mathematics 2023-01-01

Abstract In this paper, we deal with a new type of differential equations called generalized anticipated backward doubly stochastic (GA-BDSDEs). The coefficients these BDSDEs depend on the future value solution <m:math xmlns:m="http://www.w3.org/1998/Math/MathML"> <m:mrow> <m:mo>(</m:mo> <m:mi>Y</m:mi> <m:mo>,</m:mo> <m:mi>Z</m:mi> <m:mo>)</m:mo> </m:mrow> </m:math> ${(Y,Z)}$ . We obtain an existence and uniqueness theorem comparison for reflected solutions equations.

10.1515/rose-2017-0005 article EN Random Operators and Stochastic Equations 2017-03-01

In this paper, we consider the existence and uniqueness of mild solution for a class coupled fractional stochastic evolution equations driven by Brownian motion with Hurst parameter <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:mi>H</mml:mi><mml:mo>∈</mml:mo><mml:mfenced open="(" close=")"...

10.1155/2020/8213976 article EN cc-by Discrete Dynamics in Nature and Society 2020-05-07

In this article, we study the ergodicity of neutral retarded stochastic functional differential equations driven by $α$-regular Volterra process. Based on equivalence between and evolution equation, get equations.

10.48550/arxiv.2110.03394 preprint EN other-oa arXiv (Cornell University) 2021-01-01
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