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 2021-02-01 to 2025-02-01.)

Article	Citations
Existence and multiplicity results for Dirichlet problem with fractional Laplacian and nonlinearity	31
Eilenberg–Jachymski collections and its first consequences for the fixed point theory	26
Fixed points and steady solitons for the two-loop renormalization group flow	22
An algebraic approach to the algebraic Weinstein conjecture	20
Reeb chords of Lagrangian slices	15
Iteration formulae for brake orbit and index inequalities for real pseudoholomorphic curves	14
The Verlinde traces for $$SU_{X}(2,\xi )$$ and blow-ups	12
Gottlieb’s theorem for a periodic equivalence	10
Stabilization in dipolar Gross–Pitaevskii theory by mass-subcritical perturbation	9
Applications of the Bielecki renorming technique	9
A fixed point theorem for measurable selection valued correspondences induced by upper Caratheodory correspondences	9
On fixed point approach to equilibrium problem	9
Lagrangian skeleta and plane curve singularities	8
Local and global coincidence homology classes	7
A relationship between quasimonotone and monotone bifunctions	7
Multiple solutions of the Dirichlet problem in multidimensional billiard spaces	7
Positive least energy solutions for k-coupled Schrödinger system with critical exponent: the higher dimension and cooperative case	7
Best proximity and best periodic points for proximal nonunique contractions	7
Some best proximity point results via a new family of F-contraction and an application to homotopy theory	7
A new proof of Hartman and Winter’s theorem	7
A condition on uniform spaces for the existence of maximal elements and fixed points	6
New examples of subsets of c with the FPP and stability of the FPP in hyperconvex spaces	6
Stability of the braid types defined by the symplecticmorphisms preserving a link	6
On the Meir–Keeler theorem in quasi-metric spaces	6
Existence and behavior of positive solutions for a class of linearly coupled systems with discontinuous nonlinearities in $${\mathbb {R}}^N$$	6

Generalized Halpern iteration with new control conditions and its application	6
The Arnold conjecture for singular symplectic manifolds	6
Contact geometry in the restricted three-body problem: a survey	5
Examples around the strong Viterbo conjecture	5
Coisotropic Hofer–Zehnder capacities of convex domains and related results	5
On the initial value problem for the nonlinear fractional Rayleigh-Stokes equation	5
Triple positive radial solutions arising from biharmonic elliptic systems	4
Vũ Ngọc’s conjecture on focus-focus singular fibers with multiple pinched points	4
Correction to: Conley index theory without index pairs. I: The point-set level theory	4
On the periodic structure of $$C^1$$ self-maps on the product of spheres of different dimensions	4
$$L^\infty (\Omega )$$ a priori estimates for subcritical semilinear elliptic equations with a Carathéodory non-linearity	4
Existence and multiplicity of the positive normalized solutions to the coupled Hartree–Fock type nonlocal elliptic system	4
Radially symmetric solutions of a nonlinear singular elliptic equation	4
On dual cone theory for Euclidean Bosonic equations	4
Correction to: Multi-step inertial Krasnosel’skiǐ–Mann iteration with new inertial parameters arrays	4
Existence of solutions and approximate controllability of second-order stochastic differential systems with Poisson jumps and finite delay	4
Common fixed point theorems for enriched Jungck contractions in Banach spaces	4
Another look at the Hofer–Zehnder conjecture	4
Resonant noncooperative elliptic systems via relative morse indices and linking method	4
Higher symplectic capacities and the stabilized embedding problem for integral ellipsoids	4
Periods of Morse–Smale diffeomorphisms on $${\mathbb {S}}^n$$, $${\mathbb {S}}^m \times {\mathbb {S}}^n$$, $${\mathbb {C}}{\mathbf{P }}^n$$ and $${\mathbb {H}}{\mathbf{P }}^n$$	3
Implicit subdifferential inclusions with nonconvex-valued perturbations	3
Best approximation theorems for almost cyclic contractions	3
Sufficient conditions for perturbations to define the resolvent of the equilibrium problem on complete geodesic spaces	3
On the connectivity of graph Lipscomb’s spaces	3
Normalized ground states for semilinear elliptic systems with critical and subcritical nonlinearities	3
Transverse foliations in the rotating Kepler problem	3
Axiomatization of the degree of Fitzpatrick, Pejsachowicz and Rabier	3
Classification, non-degeneracy and existence of solutions to nonlinear Choquard equations	3
A Poincaré–Birkhoff theorem for multivalued successor maps with applications to periodic superlinear Hamiltonian systems	3
Elliptic problems with mixed nonlinearities and potentials singular at the origin and at the boundary of the domain	3
Singular solutions for nonlinear elliptic equations on bounded domains	3
Existence of positive solutions for one dimensional Minkowski curvature problem with singularity	3
Properties of the minimizers for a constrained minimization problem arising in fractional NLS system	3
Existence and convergence of solutions for p-Laplacian systems with homogeneous nonlinearities on graphs	2
Stability and instability of standing-wave solutions to one-dimensional quadratic-cubic Klein–Gordon equations	2
Nonexpansive maps with surjective displacement	2
Diffeomorphism type via aperiodicity in Reeb dynamics	2
Affine minimax variational inequalities and matrix two-person games	2
Non-variational radial solutions to a singular elliptic Dirichlet problem on the disk with Leray potential	2
An integral RB operator	2
Existence results for singular strongly non-linear integro-differential BVPs on the half line	2
Multiplicity of solutions for a class of upper critical Choquard equation with steep potential well	2
Boundary blow-up solutions to the k-Hessian equation with the logarithmic nonlinearity and singular weights	2
On the Dirichlet problem associated with bounded perturbations of positively-(p, q)- homogeneous Hamiltonian systems	2
Lyapunov stability of singular planarsystems related to dispersion-managedsolitons in optical fiber	2
Iterated nonexpansive mappings in Hilbert spaces	2
Existence of a positive hyperbolic Reeb orbit in three spheres with finite free group actions	2
Homoclinic solutions for a class of relativistic Liénard equations	2
Symplectic embeddings into disk cotangent bundles	2

On symplectomorphisms and Hamiltonian flows	2
Existence of positive solutions in the space of Lipschitz functions for a fractional boundary problem with nonlocal boundary condition	2
A local-to-global inequality for spectral invariants and an energy dichotomy for Floer trajectories	2
Around averaged mappings	2
Symplectically convex and symplectically star-shaped curves: a variational problem	2
Closed geodesics on reversible Finsler 2-spheres	2
Existence of a fractal of iterated function systems containing condensing functions for the degree of nondensifiability	2
Coincidence of maps from connected sums of closed surfaces into graphs	2
Global surfaces of section with positive genus for dynamically convex Reeb flows	2
Correction to: On curves with the Poritsky property	2
On the number of positive solutions for a four-point boundary value problem with generalized Laplacian	2
Correction to: Periods of Morse–Smale diffeomorphisms on $${\mathbb {S}}^{n}, {\mathbb {S}}^{m} \times {\mathbb {S}}^n$$, $${\mathbb {C}}{\textbf{P}}^{n}$$ and $${\mathbb {H}}{\textbf{P}}^{n}$$	2
Basic facts and naive questions	2
Nielsen numbers of affine n-valued maps on nilmanifolds	2
On an Ambrosetti–Prodi type problem in $$\mathbb {R}^N$$	2
Ulam stability of functional equations in 2-Banach spaces via the fixed point method	2
Initial value problem for hybrid $$\psi $$-Hilfer fractional implicit differential equations	2
Some conditions for the oscillation of second-order differential equations with several mixed delays	2
The Brouwer fixed point theorem and periodic solutions of differential equations	2