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  1. In this work, we create new oscillation conditions for solutions of second-order differential equations with continuous delay. The new criteria were created based on Riccati transformation technique and compar...

    Authors: Osama Moaaz, Choonkil Park, Elmetwally M. Elabbasy and Waed Muhsin

    Citation: Boundary Value Problems 2021 2021:35

    Content type: Research

    Published on:

  2. In the paper, we study a boundary value problem for a class of ψ-Hilfer fractional-order Langevin equations with multi-point integral boundary conditions. Existence and uniqueness results are established by using...

    Authors: Cholticha Nuchpong, Sotiris K. Ntouyas, Devaraj Vivek and Jessada Tariboon

    Citation: Boundary Value Problems 2021 2021:34

    Content type: Research

    Published on:

  3. The aim of this paper is to investigate the optimal harvesting strategies of a stochastic competitive Lotka–Volterra model with S-type distributed time delays and Lévy jumps by using ergodic method. Firstly, t...

    Authors: Hong Qiu, Wenmin Deng and Mingqi Xiang

    Citation: Boundary Value Problems 2021 2021:31

    Content type: Research

    Published on:

  4. This article has been retracted. Please see the Retraction Notice for more detail: https://​doi.​org/​10.​1186/​s13661-021-01502-z

    Authors: Yisheng Hu, Songhai Qin, Zhibin Liu and Yi Wang

    Citation: Boundary Value Problems 2021 2021:24

    Content type: Retraction Note

    Published on:

    The original article was published in Boundary Value Problems 2020 2020:75

  5. We consider the inertial Qian–Sheng’s Q-tensor dynamical model for the nematic liquid crystal flow, which can be viewed as a system coupling the hyperbolic-type equations for the Q-tensor parameter with the incom...

    Authors: Xiaoyuan Wang, Sirui Li and Tingting Wang

    Citation: Boundary Value Problems 2021 2021:21

    Content type: Research

    Published on:

  6. In this article we extend the known theory of solution regions to encompass nonlinear boundary conditions. We both provide results for new boundary conditions and recover some known results for the linear case.

    Authors: Marlène Frigon, Marcos Tella and F. Adrián F. Tojo

    Citation: Boundary Value Problems 2021 2021:19

    Content type: Research

    Published on:

  7. The current study is devoted to deriving some results about existence and stability analysis for a nonlinear problem of implicit fractional differential equations (FODEs) with impulsive and integral boundary c...

    Authors: Arshad Ali, Kamal Shah, Thabet Abdeljawad, Ibrahim Mahariq and Mostafa Rashdan

    Citation: Boundary Value Problems 2021 2021:7

    Content type: Research

    Published on:

  8. Results reported in this paper study the existence and stability of a class of implicit generalized proportional fractional integro-differential Langevin equations with nonlocal fractional integral conditions....

    Authors: Bounmy Khaminsou, Chatthai Thaiprayoon, Jehad Alzabut and Weerawat Sudsutad

    Citation: Boundary Value Problems 2020 2020:176

    Content type: Research

    Published on:

  9. In this paper, we prove the global existence and exponential energy decay results of a coupled Lamé system with distributed time delay, nonlinear source term, and without memory term by using the Faedo–Galerki...

    Authors: Salah Boulaaras and Nadjat Doudi

    Citation: Boundary Value Problems 2020 2020:173

    Content type: Research

    Published on:

  10. The paper studies the global existence and general decay of solutions using Lyapunov functional for a nonlinear wave equation, taking into account the fractional derivative boundary condition and memory term. ...

    Authors: Salah Boulaaras, Fares Kamache, Youcef Bouizem and Rafik Guefaifia

    Citation: Boundary Value Problems 2020 2020:172

    Content type: Research

    Published on:

  11. This work is concerned with a system of two singular viscoelastic equations with general source terms and nonlocal boundary conditions. We discuss the stabilization of this system under a very general assumpti...

    Authors: Mohammad M. Al-Gharabli, Adel M. Al-Mahdi and Salim A. Messaoudi

    Citation: Boundary Value Problems 2020 2020:170

    Content type: Research

    Published on:

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