The Existence of Periodic Solutions of Delay Differential Equations by E+-Conley Index Theory by Huafeng Xiao

“…In this paper, the E+-Conley index theory has been used to study the existence of periodic solutions of nonautonomous delay differential equations (in short, DDEs). The variational structure for DDEs is built, and the existence of periodic solutions of DDEs is transferred to that of critical points of the associated function. …”
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Numerical simulation of fuzzy fractional differential equations using a reliable technique by Shreya Mukherjee, Amit Kumar, Samaresh Kumbhakar

Subjects: “…fuzzy fractional differential equations…”
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On Nonseparated Three-Point Boundary Value Problems for Linear Functional Differential Equations by A. Rontó, M. Rontó

“…For a system of linear functional differential equations, we consider a three-point problem with nonseparated boundary conditions determined by singular matrices. …”
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Positive Solutions for Fourth-Order Nonlinear Differential Equation with Integral Boundary Conditions by Qi Wang, Yanping Guo, Yude Ji

“…This paper investigates the existence and nonexistence of positive solutions for a class of fourth-order nonlinear differential equation with integral boundary conditions. …”
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Uniformly convergent schemes for singularly perturbed differential equations based on collocation methods by Dialla Konate

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Investigating a Class of Generalized Caputo-Type Fractional Integro-Differential Equations by Saeed M. Ali, Wasfi Shatanawi, Mohammed D. Kassim, Mohammed S. Abdo, S. Saleh

“…In this article, we prove some new uniqueness and Ulam-Hyers stability results of a nonlinear generalized fractional integro-differential equation in the frame of Caputo derivative involving a new kernel in terms of another function ψ. …”
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Periodic Solutions for a Class of 𝑛-th Order Functional Differential Equations by Bing Song, Lijun Pan, Jinde Cao

“…International Journal of Differential Equations…”
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A Novel and Efficient Iterative Approach to Approximating Solutions of Fractional Differential Equations by Doaa Filali, Nidal H. E. Eljaneid, Adel Alatawi, Esmail Alshaban, Montaser Saudi Ali, Faizan Ahmad Khan

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Positive Periodic Solution for the Generalized Neutral Differential Equation with Multiple Delays and Impulse by Zhenguo Luo, Liping Luo, Yunhui Zeng

“…By using a fixed point theorem of strict-set-contraction, which is different from Gaines and Mawhin's continuation theorem and abstract continuation theory for k-set contraction, we established some new criteria for the existence of positive periodic solution of the following generalized neutral delay functional differential equation with impulse: x'(t)=x(t)[a(t)-f(t,x(t),x(t-τ1(t,x(t))),…,x(t-τn(t,x(t))),x'(t-γ1(t,x(t))),…,x'(t-γm(t,x(t))))],  t≠tk,  k∈Z+;  x(tk+)=x(tk-)+θk(x(tk)),  k∈Z+. …”
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Relative Nonlinear Measure Method to Exponential Stability of Impulsive Delayed Differential Equations by Xueli Song, Xing Xin, Huiya Dai, Jigen Peng

“…This paper is devoted to providing a novel method to global exponential stability of impulsive delayed differential equations. By utilizing relative nonlinear measure method, several global exponential stability criteria are presented for the impulsive delayed differential equations. …”
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Nonlinear Neutral Delay Differential Equations: Novel Criteria for Oscillation and Asymptotic Behavior by Belal Batiha, Nawa Alshammari, Faten Aldosari, Fahd Masood, Omar Bazighifan

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Set of Oscillation Criteria for Second Order Nonlinear Forced Differential Equations with Damping by Ambarka Abdalla Salhin, Ummul Khair Salma Din, Rokiah Rozita Ahmad, Mohd Salmi Md Noorani

“…By employing a generalized Riccati technique and an integral averaging technique, some new oscillation criteria are established for the second order nonlinear forced differential equation with damping. These results extend, improve, and unify some known oscillation criteria in the existing literature.…”
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Stability, Boundedness, and Lagrange Stability of Fractional Differential Equations with Initial Time Difference by Muhammed Çiçek, Coşkun Yakar, Bülent Oğur

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On the Oscillation Criteria for Fourth-Order p-Laplacian Differential Equations with Middle Term by Dandan Yang, Chuanzhi Bai

“…In this paper, we study the oscillatory properties of the solutions of a class of fourth-order p-Laplacian differential equations with middle term. The new oscillation criteria obtained by using the theory of comparison with first- and second-order differential equations and a refinement of the Riccati transformations. …”
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Some Weakly Singular Integral Inequalities and Their Applications to Tempered Fractional Differential Equations by Abdellatif Ben Makhlouf, Djalal Boucenna, A.M. Nagy, Lassaad Mchiri

“…Several applications for fractional differential equations in the Caputo context have been derived using tempered fractional differential equations.…”
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Qualitative Behaviors of Functional Differential Equations of Third Order with Multiple Deviating Arguments by Cemil Tunç

“…This paper considers nonautonomous functional differential equations of the third order with multiple constant deviating arguments. …”
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Properties of the solution of some multipoint problems for integro-differential equation of Barbashin type by Nurmuhammet Gurbanmammedov, Parahat Gurbanmammedov, Ogulhan Haydarova

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The decomposition method for linear, one-dimensional, time-dependent partial differential equations by D. Lesnic

“…The analytical solutions for linear, one-dimensional, time-dependent partial differential equations subject to initial or lateral boundary conditions are reviewed and obtained in the form of convergent Adomian decomposition power series with easily computable components. …”
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The Fixed Point Theory and the Existence of the Periodic Solution on a Nonlinear Differential Equation by Ni Hua

“…This paper deals with a nonlinear differential equation, by using the fixed point theory. The existence of the periodic solution of the nonlinear differential equation is obtained; these results are new.…”
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Results on non local impulsive implicit Caputo-Hadamard fractional differential equations by K. Venkatachalam, M. Sathish Kumar, P. Jayakumar

Subjects: “…fractional differential equation…”
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