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 2021-06-01 to 2025-06-01.)

Article	Citations
Ground states solutions for some non-autonomous Schrödinger-Bopp-Podolsky system	9
Two regularity criteria of the 3D magneto-micropolar equations in Vishik spaces	6
Biharmonic system with Hartree-type critical nonlinearity	5
Multiplicity of solutions for p ( x 4
Critical points of locally Lipschitz functionals inside and outside the ordered interval	3
Expansion of positivity to a class of doubly nonlinear parabolic equations	3
Prolongation of solutions and Lyapunov stability for Stieltjes dynamical systems	2
On the logarithmic fractional Schrödinger–Poisson system with saddle-like potential	2
The existence of solutions for the modified ( p ( x	2
Rational solutions and limit cycles of polynomial and trigonometric Abel equations	2
Multiple nonsymmetric nodal solutions for quasilinear Schrödinger system	2
Normalized solutions for a fractional coupled critical Hartree system	2
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
Positive solutions to three classes of non-local fourth-order problems with derivative-dependent nonlinearities	2
On a special case of a difference equation with powers	2
Bifurcations and Turing patterns in a diffusive Gierer–Meinhardt model	2
Symmetric nonlinear solvable system of difference equations	2
Semilinear heat equation with singular terms	2
Ground-state solutions of a Hartree–Fock type system involving critical Sobolev exponent	2
Strong maximum principle for a sublinear elliptic problem at resonance	2
Positive solutions for a class of concave-convex semilinear elliptic systems with double critical exponents	2
Sharp results for oscillation of second-order neutral delay differential equations	2
On the localization and numerical computation of positive radial solutions for ϕ -Laplace equations in t	2
On some differential equations involving a new kind of variable exponents	2

Sobolev inequality with non-uniformly degenerating gradient	1
Convergence of weak solutions of elliptic problems with datum in L 1	1
On oscillation of solutions of scalar delay differential equation in critical case	1
Existence of solution for a generalized Schrödinger–Poisson system via bifurcation theory	1
Periodic and bounded solutions of functional differential equations with small delays	1
Global dynamics on a class of age-infection structured cholera model with immigration	1
Existence of positive solutions of elliptic equations with Hardy term	1
New oscillation criteria for third order nonlinear functional differential equations	1
Existence and multiplicity of eigenvalues for some double-phase problems involving an indefinite sign reaction term	1
Existence and regularity of solutions for a singular anisotropic ( p , q	1
Homoclinic solutions for a class of asymptotically autonomous Hamiltonian systems with indefinite sign nonlinearities	1
Existence and nonexistence of solutions for generalized quasilinear Kirchhoff–Schrödinger–Poisson system	1
Multiple positive solutions for a fractional Kirchhoff type equation with logarithmic and singular nonlinearities	1
Existence and uniqueness of solutions of a fourth-order boundary value problem with non-homogeneous boundary conditions	1
On a solvable class of nonlinear difference equations of fourth order	1
The family of cubic differential systems with two real and two complex distinct infinite singularities and invariant straight lines of the type	1
An implicit system of delay differential algebraic equations from hydrodynamics	1
Multiplicity of solutions of Kirchhoff-type fractional Laplacian problems with critical and singular nonlinearities	1
Isolated periodic wave trains in a generalized Burgers–Huxley equation	1
Positive solutions of a Kirchhoff–Schrödinger--Newton system with critical nonlocal term	1
Rational limit cycles of Abel differential equations	1
On the analytic commutator for Λ−Ω differential systems	1
Stability results for the functional differential equations associated to water hammer in hydraulics	1
Slow divergence integral in regularized piecewise smooth systems	1
Dynamics analysis of a diffusive prey-taxis system with memory and maturation delays	1
Global bifurcation curves of nonlocal elliptic equations with oscillatory nonlinear term	1
Global boundedness and stabilization in a predator-prey model with cannibalism and prey-evasion	1
Positive solutions for concave-convex type problems for the one-dimensional ϕ -Laplacian	1
Limit cycles of planar piecewise linear Hamiltonian differential systems with two or three zones	1
Weighted L p -type regularity estimates for nonlinear parabolic equations with O	1
Schrödinger–Hardy system without the Ambrosetti–Rabinowitz condition on Carnot groups	1
Existence and exponential stability of periodic solutions of Nicholson-type systems with nonlinear density-dependent mortality and linear harvesting	1
Solvability of thirty-six three-dimensional systems of difference equations of hyperbolic-cotangent type	1
Multiple solutions for a class of Kirchhoff-type equation with critical growth	1
Infinitely many solutions for an anisotropic differential inclusion on unbounded domains	1
Normal forms for retarded functional differential equations associated with zero-double-Hopf singularity with 1 :	1
Oscillation of half-linear differential equations with mixed type of argument	1
Global attractivity of a higher order nonlinear difference equation with decreasing terms	1
Normalized solutions for Kirchhoff-type equations with combined nonlinearities: the L	1
Linearized instability for differential equations with dependence on the past derivative	1