OOIR: Observatory of International Research

Papers

(The TQCC of Journal of Fixed Point Theory and Applications is 2. 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 2021-05-01 to 2025-05-01.)

Article	Citations
Symmetry and uniqueness for a hinged plate problem in a ball	34
Generalized Halpern iteration with new control conditions and its application	26
Radially symmetric solutions of a nonlinear singular elliptic equation	25
Existence of solutions and approximate controllability of second-order stochastic differential systems with Poisson jumps and finite delay	14
On dual cone theory for Euclidean Bosonic equations	14
Positive least energy solutions for k-coupled Schrödinger system with critical exponent: the higher dimension and cooperative case	12
The Verlinde traces for $$SU_{X}(2,\xi )$$ and blow-ups	10
Least energy radial sign-changing solutions for pseudo-relativistic Hartree equations in $$\mathbb {R}^N$$	10
Multiple solutions of the Dirichlet problem in multidimensional billiard spaces	10
A condition on uniform spaces for the existence of maximal elements and fixed points	9
Uniqueness of local solutions to the Boltzmann equation	9
On the Meir–Keeler theorem in quasi-metric spaces	9
Basic facts and naive questions	9
On an Ambrosetti–Prodi type problem in $$\mathbb {R}^N$$	8
Classification, non-degeneracy and existence of solutions to nonlinear Choquard equations	8
Non-negative solutions of a sublinear elliptic problem	7
Implicit subdifferential inclusions with nonconvex-valued perturbations	7
$$C^0$$-robustness of topological entropy for geodesic flows	7
Nielsen numbers of affine n-valued maps on nilmanifolds	6
Well-posedness of the Boussinesq systems on whole line time-axis and on weighted spaces	6
Nonlocal differential equations with convex convolution coefficients	6
Correction to: On curves with the Poritsky property	6
The rigid-flexible value for symplectic embeddings of four-dimensional ellipsoids into polydiscs	6
Common fixed points for commuting multivalued non-convex mappings in metric trees	6
Nontrivial p-$$k_i$$-convex radial solutions for p-$$k_i$$-Hessian systems: existence and asymptotic behavior	6

Elliptic problems with mixed nonlinearities and potentials singular at the origin and at the boundary of the domain	6
Applications of the Banach fixed-point theorem to analyze insolvency problems of an insurance company	6
Ulam stability of functional equations in 2-Banach spaces via the fixed point method	6
Some remarks on fixed sets for perturbed multivalued mappings	5
Existence of normalized positive solution of nonhomogeneous biharmonic Schrödinger equations: mass-supercritical case	5
Most continuous and increasing functions on a compact real interval have infinitely many different fixed points	5
A Lagrangian Klein bottle you can’t squeeze	5
Single peak solutions for an elliptic system of FitzHugh–Nagumo type	5
On self-maps of complex flag manifolds	5
Invariant measures for place-dependent idempotent iterated function systems	5
Normalized solutions to the Chern–Simons–Schrödinger system: the supercritical case	5
Breather solutions in conservative and dissipative nonlinear Klein–Gordon lattices	4
Positive solution for an elliptic system with critical exponent and logarithmic terms: the higher-dimensional cases	4
The existence of $$S^1\times C_p$$-maps between representation spheres and its applications	4
Combinatorial formulas for some generalized Ekeland-Hofer-Zehnder capacities of convex polytopes	4
New classes of Picard operators	4
Periodic solutions for nonresonant parabolic equations on $${\mathbb {R}}^N$$ with Kato–Rellich type potentials	4
Volume-preserving right-handed vector fields are conformally Reeb	4
The Anosov–Katok method and pseudo-rotations in symplectic dynamics	3
Three shrinking projection methods with multiple inertial effects for solving a class of split feasibility problems	3
Correction to: Fixed point theory of cyclic operators	3
The method of lower and upper solutions for second order periodic Stieltjes differential equations	3
Existence and asymptotic behavior of solutions for nonhomogeneous Schrödinger–Poisson system with exponential and logarithmic nonlinearities	3
A fixed point theorem and Ulam stability of a general linear functional equation in random normed spaces	3
Laminar flow in channels with porous walls: advancing the existence, uniqueness and approximation of solutions via fixed point approaches	3
Ekeland variational principle on quasi-weighted graphs: improving the work–family balance	3
Bifurcations from degenerate orbits of solutions of nonlinear elliptic systems	3
Finite Morse index solutions of a nonlinear Schrödinger equation in half-space with nonlinear boundary value conditions	3
Periodic points of mappings contracting total pairwise distances	3
Multiple normalized solutions to Schrödinger equations in $$\mathbb {R}^N$$ with critical growth and potential	3
Existence of invariant idempotent measures by contractivity of idempotent Markov operators	3
Syzygy sequences of the three-center problem	3
Fixed point and surjectivity results for e-quasibounded and (mws)-compact multivalued maps and applications	3
Set theoretical pathologies in the problem of Lyapunov stability of singular points of vector fields	3
Multiplicity of normalized solutions for dipolar Gross-Pitaevskii equation with a mass subcritical perturbation	3
Comments on the cosmic convergence of nonexpansive maps	3
Ground state and nodal solutions for critical Schrödinger–Kirchhoff-type Laplacian problems	3
Beyond Cauchy–Kowalewsky: a Picard–Lindelöf theorem for smooth PDE	2
On the periodic structure of $$C^1$$ self-maps on the product of spheres of different dimensions	2
Polytope Novikov homology	2
Cuplength estimates for periodic solutions of Hamiltonian particle-field systems	2
Existence of mild solutions for impulsive evolution equation with nonlocal condition	2
An algebraic approach to the algebraic Weinstein conjecture	2
A Poincaré–Birkhoff theorem for multivalued successor maps with applications to periodic superlinear Hamiltonian systems	2
Existence and convergence of solutions for p-Laplacian systems with homogeneous nonlinearities on graphs	2
Existence and multiplicity of positive periodic solutions to a class of Liénard equations with repulsive singularities	2
Non-potential systems with relativistic operators and maximal monotone boundary conditions	2
On fixed points of locally and pointwise contractive set-valued maps with an application to the existence of Nash equilibrium in games	2
Diffeomorphism type via aperiodicity in Reeb dynamics	2
Concepts of almost periodicity and ergodic theorems in locally convex spaces	2

Symmetry and monotonicity of positive solutions for a Choquard equation involving the logarithmic Laplacian operator	2
Pohožaev method and nontrivial ground state solutions for a class of quasilinear Schrödinger system	2
Correction to: Multi-step inertial Krasnosel’skiǐ–Mann iteration with new inertial parameters arrays	2
Stabilization in dipolar Gross–Pitaevskii theory by mass-subcritical perturbation	2
Existence of positive solutions for one dimensional Minkowski curvature problem with singularity	2
Global structure of positive solutions for a Neumann problem with indefinite weight in Minkowski space	2
On the Nielsen root theory of n-valued maps	2
Non-variational radial solutions to a singular elliptic Dirichlet problem on the disk with Leray potential	2
Hutchings’ inequality for the Calabi invariant revisited with an application to pseudo-rotations	2
Periods of Morse–Smale diffeomorphisms on $${\mathbb {S}}^n$$, $${\mathbb {S}}^m \times {\mathbb {S}}^n$$, $${\mathbb {C}}{\mathbf{P }}^n$$ and $${\mathbb {H}}{\mathbf{P }}^n$$	2
Existence and uniqueness of solution for neutral differential equations with state- dependent delay	2
Orientability through the algebraic multiplicity	2
On the convergence of solutions to an incomplete Cauchy problem governed by a quasi-convex function and a quasi-nonexpansive operator	2
Vũ Ngọc’s conjecture on focus-focus singular fibers with multiple pinched points	2
Higher symplectic capacities and the stabilized embedding problem for integral ellipsoids	2
Lagrangian skeleta and plane curve singularities	2
Properties of the minimizers for a constrained minimization problem arising in fractional NLS system	2
Existence and nonuniqueness of solutions for a class of asymptotically linear nonperiodic Schrödinger equations	2
On a class of planar Schrödinger–Poisson systems with a bounded potential well	2
A Smörgåsbord of (bi)contact structures, Reeb flows and pseudo-Anosov flows	2