Search Results - "Fu, Zhengqing"

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  1. 1

    Positive solutions for a system of nonlinear Hadamard fractional differential equations involving coupled integral boundary conditions by Jiang, Jiqiang, O’Regan, Donal, Xu, Jiafa, Fu, Zhengqing

    Published in Journal of inequalities and applications (23-07-2019)
    “…In this paper we use the fixed point index to study the existence of positive solutions for a system of nonlinear Hadamard fractional differential equations…”
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    Journal Article
  2. 2

    Solutions for a Class of Hadamard Fractional Boundary Value Problems with Sign-Changing Nonlinearity by Zhang, Keyu, Fu, Zhengqing

    Published in Journal of function spaces (01-01-2019)
    “…Using fixed point methods we establish some existence theorems of positive (nontrivial) solutions for a class of Hadamard fractional boundary value problems…”
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  3. 3

    On implicit impulsive Langevin equation involving mixed order derivatives by Zada, Akbar, Rizwan, Rizwan, Xu, Jiafa, Fu, Zhengqing

    Published in Advances in difference equations (28-11-2019)
    “…In this paper, we consider a nonlocal boundary value problem of nonlinear implicit impulsive Langevin equation involving mixed order derivatives. Sufficient…”
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  4. 4

    Tikhonov Regularized Variable Projection Algorithms for Separable Nonlinear Least Squares Problems by Fu, Zhengqing, Guo, Lanlan

    Published in Complexity (New York, N.Y.) (2019)
    “…This paper considers the classical separable nonlinear least squares problem. Such problems can be expressed as a linear combination of nonlinear functions,…”
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  5. 5

    Nontrivial solutions for an integral boundary value problem involving Riemann–Liouville fractional derivatives by Fu, Zhengqing, Bai, Shikun, O’Regan, Donal, Xu, Jiafa

    Published in Journal of inequalities and applications (16-04-2019)
    “…In this paper using topological degree we study the existence of nontrivial solutions for a fractional differential equation involving integral boundary…”
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  6. 6

    Nontrivial solutions for boundary value problems of a fourth order difference equation with sign-changing nonlinearity by Zhang, Keyu, O’Regan, Donal, Fu, Zhengqing

    Published in Advances in difference equations (11-10-2018)
    “…In this paper, using the topological degree theory, we establish two existence theorems for nontrivial solutions for boundary value problems of a fourth order…”
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  7. 7

    Positive Solutions for a System of Fractional Integral Boundary Value Problems of Riemann–Liouville Type Involving Semipositone Nonlinearities by Ding, Youzheng, Xu, Jiafa, Fu, Zhengqing

    Published in Mathematics (Basel) (01-10-2019)
    “…In this work by the index of fixed point and matrix theory, we discuss the positive solutions for the system of Riemann–Liouville type fractional boundary…”
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  8. 8

    Nontrivial Solutions for a Higher Order Nonlinear Fractional Boundary Value Problem Involving Riemann-Liouville Fractional Derivatives by Fu, Zhengqing, Xu, Jiafa, O'Regan, Donal, Zhang, Keyu

    Published in Journal of function spaces (01-01-2019)
    “…In this paper using topological degree we study the existence of nontrivial solutions for a higher order nonlinear fractional boundary value problem involving…”
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  9. 9

    Hyers–Ulam–Mittag-Leffler Stability for a System of Fractional Neutral Differential Equations by Fu, Zhengqing, Ali, Zeeshan, Zada, Akbar, Jiang, Jiqiang, Ahmad, Manzoor, Xu, Jiafa

    “…This article concerns with the existence and uniqueness for a new model of implicit coupled system of neutral fractional differential equations involving…”
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  10. 10

    Uniqueness of Successive Positive Solution for Nonlocal Singular Higher-Order Fractional Differential Equations Involving Arbitrary Derivatives by Fu, Zhengqing, Lu, Xinyi, Zhang, Xingqiu, Zhong, Qiuyan

    Published in Journal of function spaces (01-01-2018)
    “…In this article, by means of fixed point theorem on mixed monotone operator, we establish the uniqueness of positive solution for some nonlocal singular…”
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  11. 11

    Positive Solutions for a System of Neumann Boundary Value Problems of Second-Order Difference Equations Involving Sign-Changing Nonlinearities by Fu, Zhengqing, Xu, Jiafa, Henderson, Johnny, Jiang, Jiqiang

    Published in Journal of function spaces (01-01-2019)
    “…In this paper, we study the existence of positive solutions for the system of second-order difference equations involving Neumann boundary conditions: - Δ 2 u…”
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  12. 12

    Positive Solutions for a System of Semipositone Fractional Difference Boundary Value Problems by Fu, Zhengqing, O'Regan, Donal, Xu, Jiafa, Chen, Cheng

    Published in Journal of function spaces (01-01-2018)
    “…Using the fixed point index, we establish two existence theorems for positive solutions to a system of semipositone fractional difference boundary value…”
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  13. 13

    Infinitely many solutions via critical points for a fractional p-Laplacian equation with perturbations by Zhang, Keyu, O’Regan, Donal, Xu, Jiafa, Fu, Zhengqing

    Published in Advances in difference equations (03-05-2019)
    “…In this paper, we use variant fountain theorems to study the existence of infinitely many solutions for the fractional p -Laplacian equation ( − Δ ) p α u + λ…”
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  14. 14

    An Efficient Algorithm for Ill-Conditioned Separable Nonlinear Least Squares by Wang, Jiayan, Guo, Lanlan, Li, Zongmin, Wang, Xueqin, Fu, Zhengqing

    Published in Journal of mathematics (Hidawi) (2021)
    “…For separable nonlinear least squares models, a variable projection algorithm based on matrix factorization is studied, and the ill-conditioning of the model…”
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  15. 15

    Weighted Semiparameter Model and Its Application by Fu, Zhengqing, Liu, Guolin, Zhao, Ke, Guo, Hua

    Published in Journal of Applied Mathematics (01-01-2014)
    “…A weighted semiparameter estimate model is proposed. The parameter components and nonparameter components are weighted. The weights are determined by the…”
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  16. 16

    Crystal Structure of Yeast Mitochondrial Peripheral Membrane Protein Tim44p C-terminal Domain by Josyula, Ratnakar, Jin, Zhongmin, Fu, Zhengqing, Sha, Bingdong

    Published in Journal of molecular biology (09-06-2006)
    “…The protein transports from the cell cytosol to the mitochondria matrix are carried out by the translocase of the outer membrane (TOM) complex and the…”
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    Uniqueness of Successive Positive Solution for Nonlocal Singular Higher-Order Fractional Differential Equations Involving Arbitrary Derivatives by Zhong, Qiuyan, Zhang, Xingqiu, Lu, Xinyi, Fu, Zhengqing

    Published in Journal of function spaces (01-01-2018)
    “…In this article, by means of fixed point theorem on mixed monotone operator, we establish the uniqueness of positive solution for some nonlocal singular…”
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    Journal Article