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

Article	Citations
Symmetry and uniqueness for a hinged plate problem in a ball	36
Generalized Halpern iteration with new control conditions and its application	27
Radially symmetric solutions of a nonlinear singular elliptic equation	26
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
The Verlinde traces for $$SU_{X}(2,\xi )$$ and blow-ups	12
Multiple solutions of the Dirichlet problem in multidimensional billiard spaces	10
Least energy radial sign-changing solutions for pseudo-relativistic Hartree equations in $$\mathbb {R}^N$$	10
Positive least energy solutions for k-coupled Schrödinger system with critical exponent: the higher dimension and cooperative case	9
On an Ambrosetti–Prodi type problem in $$\mathbb {R}^N$$	9
On the Meir–Keeler theorem in quasi-metric spaces	9
Uniqueness of local solutions to the Boltzmann equation	9
Classification, non-degeneracy and existence of solutions to nonlinear Choquard equations	9
A condition on uniform spaces for the existence of maximal elements and fixed points	9
Basic facts and naive questions	9
Implicit subdifferential inclusions with nonconvex-valued perturbations	8
Nontrivial p-$$k_i$$-convex radial solutions for p-$$k_i$$-Hessian systems: existence and asymptotic behavior	7
Elliptic problems with mixed nonlinearities and potentials singular at the origin and at the boundary of the domain	7
Correction to: On curves with the Poritsky property	7
Non-negative solutions of a sublinear elliptic problem	7
Well-posedness of the Boussinesq systems on whole line time-axis and on weighted spaces	7
Nielsen numbers of affine n-valued maps on nilmanifolds	7
Applications of the Banach fixed-point theorem to analyze insolvency problems of an insurance company	6
On self-maps of complex flag manifolds	6
The rigid-flexible value for symplectic embeddings of four-dimensional ellipsoids into polydiscs	6

Nonlocal differential equations with convex convolution coefficients	6
$$C^0$$-robustness of topological entropy for geodesic flows	6
Common fixed points for commuting multivalued non-convex mappings in metric trees	6
Combinatorial formulas for some generalized Ekeland-Hofer-Zehnder capacities of convex polytopes	5
Invariant measures for place-dependent idempotent iterated function systems	5
Normalized solutions to the Chern–Simons–Schrödinger system: the supercritical case	5
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
New classes of Picard operators	5
A Lagrangian Klein bottle you can’t squeeze	5
Single peak solutions for an elliptic system of FitzHugh–Nagumo type	5
Volume-preserving right-handed vector fields are conformally Reeb	4
Syzygy sequences of the three-center problem	4
Breather solutions in conservative and dissipative nonlinear Klein–Gordon lattices	4
The existence of $$S^1\times C_p$$-maps between representation spheres and its applications	4
Periodic solutions for nonresonant parabolic equations on $${\mathbb {R}}^N$$ with Kato–Rellich type potentials	4
Stabilization in dipolar Gross–Pitaevskii theory by mass-subcritical perturbation	3
The method of lower and upper solutions for second order periodic Stieltjes differential equations	3
Finite Morse index solutions of a nonlinear Schrödinger equation in half-space with nonlinear boundary value conditions	3
Bifurcations from degenerate orbits of solutions of nonlinear elliptic systems	3
Ekeland variational principle on quasi-weighted graphs: improving the work–family balance	3
Correction to: Multi-step inertial Krasnosel’skiǐ–Mann iteration with new inertial parameters arrays	3
Existence of invariant idempotent measures by contractivity of idempotent Markov operators	3
A Poincaré–Birkhoff theorem for multivalued successor maps with applications to periodic superlinear Hamiltonian systems	3
An algebraic approach to the algebraic Weinstein conjecture	3
The Anosov–Katok method and pseudo-rotations in symplectic dynamics	3
Correction to: Fixed point theory of cyclic operators	3
Laminar flow in channels with porous walls: advancing the existence, uniqueness and approximation of solutions via fixed point approaches	3
Fixed point and surjectivity results for e-quasibounded and (mws)-compact multivalued maps and applications	3
Multiple normalized solutions to Schrödinger equations in $$\mathbb {R}^N$$ with critical growth and potential	3
A fixed point theorem and Ulam stability of a general linear functional equation in random normed spaces	3
Higher symplectic capacities and the stabilized embedding problem for integral ellipsoids	3
Existence and asymptotic behavior of solutions for nonhomogeneous Schrödinger–Poisson system with exponential and logarithmic nonlinearities	3
Set theoretical pathologies in the problem of Lyapunov stability of singular points of vector fields	3
Three shrinking projection methods with multiple inertial effects for solving a class of split feasibility problems	3
Positive solution for an elliptic system with critical exponent and logarithmic terms: the higher-dimensional cases	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
Periodic points of mappings contracting total pairwise distances	3
Simple closed geodesics in dimensions $$\ge 3$$	2
Existence of positive solutions for one dimensional Minkowski curvature problem with singularity	2
On fixed points of locally and pointwise contractive set-valued maps with an application to the existence of Nash equilibrium in games	2
Existence and convergence of solutions for p-Laplacian systems with homogeneous nonlinearities on graphs	2
Beyond Cauchy–Kowalewsky: a Picard–Lindelöf theorem for smooth PDE	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
Global structure of positive solutions for a Neumann problem with indefinite weight in Minkowski space	2
On the periodic structure of $$C^1$$ self-maps on the product of spheres of different dimensions	2
Vũ Ngọc’s conjecture on focus-focus singular fibers with multiple pinched points	2
Pohožaev method and nontrivial ground state solutions for a class of quasilinear Schrödinger system	2

A generalization of the Goebel–Kirk fixed point theorem for asymptotically nonexpansive mappings	2
A Smörgåsbord of (bi)contact structures, Reeb flows and pseudo-Anosov flows	2
Existence and multiplicity of positive periodic solutions to a class of Liénard equations with repulsive singularities	2
Properties of the minimizers for a constrained minimization problem arising in fractional NLS system	2
Lefschetz integral in finite spaces and its applications	2
Diffeomorphism type via aperiodicity in Reeb dynamics	2
Concepts of almost periodicity and ergodic theorems in locally convex spaces	2
Polytope Novikov homology	2
Non-potential systems with relativistic operators and maximal monotone boundary conditions	2
Existence and nonuniqueness of solutions for a class of asymptotically linear nonperiodic Schrödinger equations	2
Hutchings’ inequality for the Calabi invariant revisited with an application to pseudo-rotations	2
Cuplength estimates for periodic solutions of Hamiltonian particle-field systems	2
On a class of planar Schrödinger–Poisson systems with a bounded potential well	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
Global bifurcation of non-radial solutions for symmetric sub-linear elliptic systems on the planar unit disc	2
Lagrangian skeleta and plane curve singularities	2
On the convergence of solutions to an incomplete Cauchy problem governed by a quasi-convex function and a quasi-nonexpansive operator	2
Symmetry and monotonicity of positive solutions for a Choquard equation involving the logarithmic Laplacian operator	2
Existence of mild solutions for impulsive evolution equation with nonlocal condition	2
The higher integrability of weak solutions of critical Choquard parabolic equations	2
Orientability through the algebraic multiplicity	2