OOIR: Observatory of International Research

Papers

(The TQCC of Electronic Journal of Qualitative Theory of Differential Equations is 1. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-05-01 to 2026-05-01.)

Article	Citations
Complex oscillations of non-definite Sturm-Liouville problems, II	18
Global boundedness in a quasilinear predator–prey chemotaxis system with nonlinear indirect signal production	5
Two regularity criteria of the 3D magneto-micropolar equations in Vishik spaces	4
Multiplicity of solutions for p ( x 4
Bifurcations and Turing patterns in a diffusive Gierer–Meinhardt model	3
Biharmonic system with Hartree-type critical nonlinearity	3
Symmetric nonlinear solvable system of difference equations	3
New nonlinear Henry–Gronwall type inequality with time-varying delay and applications to fractional differential equations	3
Critical points of locally Lipschitz functionals inside and outside the ordered interval	3
Rational solutions and limit cycles of polynomial and trigonometric Abel equations	3
On the integrability and dynamics of the Hide, Skeldon and Acheson differential system	3
On a special case of a difference equation with powers	3
Topological dimensions of random attractors for a stochastic reaction-diffusion equation with delay	2
On a Dirichlet boundary value problem for an Ermakov–Painlevé I equation. A Hamiltonian EPI system	2
Sharp results for oscillation of second-order neutral delay differential equations	2
Homoclinic solutions for a class of asymptotically autonomous Hamiltonian systems with indefinite sign nonlinearities	2
Multiple positive solutions for a fractional Kirchhoff type equation with logarithmic and singular nonlinearities	2
Rational limit cycles of Abel differential equations	2
Normalized solutions for Kirchhoff-type equations with combined nonlinearities: the L	2
On the logarithmic fractional Schrödinger–Poisson system with saddle-like potential	2
Normalized solutions for a fractional coupled critical Hartree system	2
Global boundedness and stabilization in a predator-prey model with cannibalism and prey-evasion	2
Global bifurcation curves of nonlocal elliptic equations with oscillatory nonlinear term	2
Global attractivity of a higher order nonlinear difference equation with decreasing terms	2
New stability criteria for periodic planar Lotka–Volterra systems	2

Ground-state solutions of a Hartree–Fock type system involving critical Sobolev exponent	2
Prolongation of solutions and Lyapunov stability for Stieltjes dynamical systems	2
Positive solutions for a class of concave-convex semilinear elliptic systems with double critical exponents	2
Existence and nonexistence of solutions for generalized quasilinear Kirchhoff–Schrödinger–Poisson system	2
Infinitely many solutions for an anisotropic differential inclusion on unbounded domains	2
On the kernel of the Stieltjes derivative and the space of bounded Stieltjes-differentiable functions	2
Existence and regularity of solutions for a singular anisotropic ( p , q	1
Some results concerning a system of two max difference equations	1
Multiple solutions for a class of Kirchhoff-type equation with critical growth	1
An implicit system of delay differential algebraic equations from hydrodynamics	1
Positive solutions for concave-convex type problems for the one-dimensional ϕ -Laplacian	1
Nonlinear integral inequalities involving Ψ -Hilfer fractional integrals and iterated fractional inte	1
Dynamics analysis of a diffusive prey-taxis system with memory and maturation delays	1
Decreasing solutions of cyclic second-order difference systems	1
Schrödinger–Hardy system without the Ambrosetti–Rabinowitz condition on Carnot groups	1
On Shilnikov's scenario in 3D: Topological chaos for vectorfields of class C 1	1
Existence and regularity of pullback attractors for a 3D non-autonomous Navier–Stokes–Voigt model with finite delay	1
Optimal C	1
Existence of positive solutions of a semipositone problem with Minkowski-curvature operator	1
Convergence of weak solutions of elliptic problems with datum in L 1	1
On the analytic commutator for Λ−Ω differential systems	1
Configurations of quadratic systems possessing three distinct infinite singularities and one or more invariant parabolas	1
Addendum to ``Ulam–Hyers stability and exponentially dichotomic equations in Banach spaces'' [Electron. J. Qual. Theory Differ. Equ. 2023, No. 8, 1–10]	1
A study on the oscillation of second-order neutral differential equations in noncanonical form	1
Normalized solutions for Schrödinger equations with potential and general nonlinearities involving critical case on large convex domains	1
Linearized instability for differential equations with dependence on the past derivative	1
Theodore A. Burton (1935–2025)	1
Existence and uniqueness of solutions of a fourth-order boundary value problem with non-homogeneous boundary conditions	1
New oscillation criteria for third order nonlinear functional differential equations	1
Existence of solution for a generalized Schrödinger–Poisson system via bifurcation theory	1
Addendum to Higher order stroboscopic averaged functions: a general relationship with Melnikov functions	1
Periodic solutions in a linear delay difference system	1
Ulam–Hyers stability and exponentially dichotomic equations in Banach spaces	1
Slow divergence integral in regularized piecewise smooth systems	1
Global dynamics on a class of age-infection structured cholera model with immigration	1
Unilateral global bifurcation for an overdetermined problem in	1
Systems of second order Stieltjes differential equations with three-point boundary conditions	1
Existence and exponential stability of periodic solutions of Nicholson-type systems with nonlinear density-dependent mortality and linear harvesting	1
Existence of positive solutions of elliptic equations with Hardy term	1
The family of cubic differential systems with two real and two complex distinct infinite singularities and invariant straight lines of the type	1
On uniform asymptotic h -stability for li	1
Existence of normalized solutions for the nonlinear Schrödinger–Poisson–Boltzmann system	1
Multiple solutions for a fractional ( p	1
Multiplicity of solutions of Kirchhoff-type fractional Laplacian problems with critical and singular nonlinearities	1
Nonexistence and existence of solutions for a Choquard–Kirchhoff type equation involving mixed local and nonlocal operators	1
Study of singular elliptic equations with mixed boundary conditions and nonlocal source terms	1
Sign-changing solution for critical Schrödinger–Poisson system with concave perturbation	1
The blow-up method applied to monodromic singularities	1
Normal forms for retarded functional differential equations associated with zero-double-Hopf singularity with 1 :	1