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 2020-11-01 to 2024-11-01.)

Article	Citations
Initial value problem for hybrid $$\psi $$-Hilfer fractional implicit differential equations	31
Two new self-adaptive algorithms for solving the split common null point problem with multiple output sets in Hilbert spaces	26
Approximating fixed points of enriched Chatterjea contractions by Krasnoselskij iterative algorithm in Banach spaces	22
Normalized ground states for semilinear elliptic systems with critical and subcritical nonlinearities	20
Multivalued problems via orthogonal contraction mappings with application to fractional differential equation	15
Some conditions for the oscillation of second-order differential equations with several mixed delays	14
A one-dimensional Kirchhoff equation with generalized convolution coefficients	12
Existence of solutions for double-phase problems by topological degree	10
Some best proximity point results via a new family of F-contraction and an application to homotopy theory	10
An overview of the emergence of weaker continuity notions, various classes of contractive mappings and related fixed point theorems	9
Around averaged mappings	9
On the conjecture of Schauder	9
Best proximity and best periodic points for proximal nonunique contractions	9
A note on $${\mathcal {F}}$$-metric spaces	9
Optimal feedback control problem for inhomogeneous Voigt fluid motion model	9
New discontinuity results at fixed point on metric spaces	8
Some remarks on the paper “Fixed point theorems for generalized contractive mappings in metric spaces”	7
Examples around the strong Viterbo conjecture	7
A fixed point theorem and Ulam stability of a general linear functional equation in random normed spaces	7
Topological analysis of doubly nonlocal boundary value problems	7
Lagrangian skeleta and plane curve singularities	7
Fixed point theorem for mappings contracting perimeters of triangles	7
Ulam stability of functional equations in 2-Banach spaces via the fixed point method	7
New algorithm for finding the solution of nonlinear matrix equations based on the weak condition with relation-theoretic F-contractions	6
An analysis of nonlocal difference equations with finite convolution coefficients	6

What does a vector field know about volume?	6
Closed geodesics on reversible Finsler 2-spheres	6
Ground state and nodal solutions for critical Schrödinger–Kirchhoff-type Laplacian problems	6
Method of alternating projections for the general absolute value equation	6
On the initial value problem for the nonlinear fractional Rayleigh-Stokes equation	6
$$\alpha $$-Firmly nonexpansive operators on metric spaces	5
The Anosov–Katok method and pseudo-rotations in symplectic dynamics	5
Positive least energy solutions for k-coupled Schrödinger system with critical exponent: the higher dimension and cooperative case	5
Multi-step inertial Krasnosel’skiǐ–Mann iteration with new inertial parameters arrays	5
Localised time-periodic solutions of discrete nonlinear Klein–Gordon systems with convex on-site potentials	4
ECH capacities and the Ruelle invariant	4
Fixed point results for decreasing convex orbital operators in Hilbert spaces	4
Common fixed point theorems for enriched Jungck contractions in Banach spaces	4
Finitely convergent iterative methods with overrelaxations revisited	4
Fixed point–critical point hybrid theorems and application to systems with partial variational structure	4
Legendrian persistence modules and dynamics	4
Boundary blow-up solutions to the k-Hessian equation with the logarithmic nonlinearity and singular weights	4
Stability analysis for nonlocal evolution equations involving infinite delays	4
Laminar flow in channels with porous walls: advancing the existence, uniqueness and approximation of solutions via fixed point approaches	4
Best proximity point of generalized F-proximal non-self contractions	4
A constructive proof of the Cauchy–Kovalevskaya theorem for ordinary differential equations	4
Best approximation theorems for almost cyclic contractions	3
On fixed point approach to equilibrium problem	3
$$L^\infty (\Omega )$$ a priori estimates for subcritical semilinear elliptic equations with a Carathéodory non-linearity	3
Families of Legendrians and Lagrangians with unbounded spectral norm	3
Normalized solutions for nonlinear Choquard equations with general nonlocal term	3
Quantum cohomology as a deformation of symplectic cohomology	3
On the Dirichlet problem associated with bounded perturbations of positively-(p, q)- homogeneous Hamiltonian systems	3
Contact geometry in the restricted three-body problem: a survey	3
Browder’s theorem with general parameter space	3
An application of topological equivalence to Morse theory	3
Combinatorial formulas for some generalized Ekeland-Hofer-Zehnder capacities of convex polytopes	3
Uniqueness of best proximity pairs and rigidity of semimetric spaces	3
Higher symplectic capacities and the stabilized embedding problem for integral elllipsoids	3
On the Meir–Keeler theorem in quasi-metric spaces	3
New fixed point theorems for the sum of two mixed monotone operators of Meir–Keeler type and their applications to nonlinear elastic beam equations	3
Analysis of a low linear perturbed Choquard equation with critical growth	3
A refinement of the Browder–Göhde–Kirk fixed point theorem and some applications	3
Multiple results to $$\phi $$-Laplacian singular Liénard equation and applications	2
Existence and uniqueness of solution for neutral differential equations with state- dependent delay	2
Comments on the cosmic convergence of nonexpansive maps	2
Nodal solutions for Kirchhoff equations with Choquard nonlinearity	2
Disk potential functions for quadrics	2
Measures of noncompactness in modular spaces and fixed point theorems for multivalued nonexpansive mappings	2
Stability analysis of set-valued inverse variational inequalities in reflexive Banach spaces	2
Affine minimax variational inequalities and matrix two-person games	2
Multiplicity of solutions for a class of upper critical Choquard equation with steep potential well	2
$$C^0$$-robustness of topological entropy for geodesic flows	2
New examples of subsets of c with the FPP and stability of the FPP in hyperconvex spaces	2
Iteration formulae for brake orbit and index inequalities for real pseudoholomorphic curves	2

Positive radial solutions for Dirichlet problem of quasilinear differential system with mean curvature operator in Minkowski space	2
Covariant constancy of quantum Steenrod operations	2
Hutchinson’s theorem in semimetric spaces	2
On the Brzdȩk’s fixed point approach to stability of a Drygas functional equation in 2-Banach spaces	2
Ekeland variational principle on quasi-weighted graphs: improving the work–family balance	2
Hamiltonian perturbations in contact Floer homology	2
Existence and nonuniqueness of solutions for a class of asymptotically linear nonperiodic Schrödinger equations	2
An Arnold-type principle for non-smooth objects	2
Symplectic embeddings into disk cotangent bundles	2
The Brouwer fixed point theorem and periodic solutions of differential equations	2
Coisotropic Hofer–Zehnder capacities of convex domains and related results	2
Another look at the Hofer–Zehnder conjecture	2
Existence and uniqueness of fixed points for monotone operators in partially ordered Banach spaces and applications	2
Multiple solutions for the fractional p-Laplacian with jumping reactions	2
Remarks on the systoles of symmetric convex hypersurfaces and symplectic capacities	2
Existence of solution for a nonlinear equation with supercritical exponential growth	2
Existence and relaxation of solutions for evolution differential inclusions with maximal monotone operators	2
Nonlocal differential equations with convex convolution coefficients	2
A unified approach to the Nash equilibrium existence in large games from finitely many players to infinitely many players	2
On an Ambrosetti–Prodi type problem in $$\mathbb {R}^N$$	2
Axiomatization of the degree of Fitzpatrick, Pejsachowicz and Rabier	2
On the number of positive solutions for a four-point boundary value problem with generalized Laplacian	2
Existence and behavior of positive solutions for a class of linearly coupled systems with discontinuous nonlinearities in $${\mathbb {R}}^N$$	2
Multiple solutions of the Dirichlet problem in multidimensional billiard spaces	2
A companion preorder to G-majorization and a Tarski type fixed-point theorem section: convex analysis	2