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 2020-09-01 to 2024-09-01.)

Article	Citations
Initial value problem for hybrid $$\psi $$-Hilfer fractional implicit differential equations	31
A new method for solving split variational inequality problems without co-coerciveness	28
Coincidence and fixed points of multivalued F-contractions in generalized metric space with application	27
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
Differential variational–hemivariational inequalities: existence, uniqueness, stability, and convergence	18
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
New fixed point results for F-contractions of Hardy–Rogers type in b-metric spaces with applications	10
On the conjecture of Schauder	9
Optimal feedback control problem for inhomogeneous Voigt fluid motion model	9
A note on $${\mathcal {F}}$$-metric spaces	9
Best proximity and best periodic points for proximal nonunique contractions	9
Around averaged mappings	9
An overview of the emergence of weaker continuity notions, various classes of contractive mappings and related fixed point theorems	8
New discontinuity results at fixed point on metric spaces	8
Fixed point theorems for set-valued G-contractions in a graphical convex metric space with applications	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
Periodic boundary value problems involving Stieltjes derivatives	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
Ground state and nodal solutions for critical Schrödinger–Kirchhoff-type Laplacian problems	6
An analysis of nonlocal difference equations with finite convolution coefficients	6
On the well-posedness of a nonlinear pseudo-parabolic equation	6
New algorithm for finding the solution of nonlinear matrix equations based on the weak condition with relation-theoretic F-contractions	6
Topological analysis of doubly nonlocal boundary value 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
Multi-step inertial Krasnosel’skiǐ–Mann iteration with new inertial parameters arrays	5
On solving variational inequalities defined on fixed point sets of multivalued mappings in Banach spaces	5
Corrigendum: On analytic model for two-choice behavior of the paradise fish based on the fixed point method, J. Fixed Point Theory Appl. 2019, 21:56	5
$$\alpha $$-Firmly nonexpansive operators on metric spaces	5
Closed geodesics on reversible Finsler 2-spheres	5
The Anosov–Katok method and pseudo-rotations in symplectic dynamics	5
What does a vector field know about volume?	5
Positive least energy solutions for k-coupled Schrödinger system with critical exponent: the higher dimension and cooperative case	5
Fixed point–critical point hybrid theorems and application to systems with partial variational structure	4
Localised time-periodic solutions of discrete nonlinear Klein–Gordon systems with convex on-site potentials	4
Fixed point results for decreasing convex orbital operators in Hilbert spaces	4
Fixed point index for discontinuous operators and fixed point theorems in cones with applications	4
Finitely convergent iterative methods with overrelaxations revisited	4
$$\Phi $$-Contraction principle and an open problem in GV-fuzzy metric spaces	4
ECH capacities and the Ruelle invariant	4
Best proximity point of generalized F-proximal non-self contractions	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
Legendrian persistence modules and dynamics	4
Boundary blow-up solutions to the k-Hessian equation with the logarithmic nonlinearity and singular weights	4
Families of Legendrians and Lagrangians with unbounded spectral norm	3
A refinement of the Browder–Göhde–Kirk fixed point theorem and some applications	3
Combinatorial formulas for some generalized Ekeland-Hofer-Zehnder capacities of convex polytopes	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
$$L^\infty (\Omega )$$ a priori estimates for subcritical semilinear elliptic equations with a Carathéodory non-linearity	3
Browder’s theorem with general parameter space	3
An application of topological equivalence to Morse theory	3
Analysis of a low linear perturbed Choquard equation with critical growth	3
Normalized solutions for nonlinear Choquard equations with general nonlocal term	3
A constructive proof of the Cauchy–Kovalevskaya theorem for ordinary differential equations	3
Common fixed point theorems for enriched Jungck contractions in Banach spaces	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
Multivariate generalized Meir–Keeler condensing operators and their applications to systems of integral equations	3
Quantum cohomology as a deformation of symplectic cohomology	3
Uniqueness of best proximity pairs and rigidity of semimetric spaces	3
Best approximation theorems for almost cyclic contractions	3
Higher symplectic capacities and the stabilized embedding problem for integral elllipsoids	3
On fixed point approach to equilibrium problem	3

On an Ambrosetti–Prodi type problem in $$\mathbb {R}^N$$	2
Affine minimax variational inequalities and matrix two-person games	2
On the Brzdȩk’s fixed point approach to stability of a Drygas functional equation in 2-Banach spaces	2
Multiple solutions of the Dirichlet problem in multidimensional billiard spaces	2
Remarks on the systoles of symmetric convex hypersurfaces and symplectic capacities	2
Another look at the Hofer–Zehnder conjecture	2
Circle actions on 8-dimensional almost complex manifolds with 4 fixed points	2
A unified approach to the Nash equilibrium existence in large games from finitely many players to infinitely many players	2
A companion preorder to G-majorization and a Tarski type fixed-point theorem section: convex analysis	2
Existence and uniqueness of solution for neutral differential equations with state- dependent delay	2
Existence of solution for a nonlinear equation with supercritical exponential growth	2
Existence and nonuniqueness of solutions for a class of asymptotically linear nonperiodic Schrödinger equations	2
The Brouwer fixed point theorem and periodic solutions of differential equations	2
Axiomatization of the degree of Fitzpatrick, Pejsachowicz and Rabier	2
Existence and behavior of positive solutions for a class of linearly coupled systems with discontinuous nonlinearities in $${\mathbb {R}}^N$$	2
Existence and uniqueness of fixed points for monotone operators in partially ordered Banach spaces and applications	2
Iteration formulae for brake orbit and index inequalities for real pseudoholomorphic curves	2
Comments on the cosmic convergence of nonexpansive maps	2
Disk potential functions for quadrics	2
Stability analysis of set-valued inverse variational inequalities in reflexive Banach spaces	2
Positive radial solutions for Dirichlet problem of quasilinear differential system with mean curvature operator in Minkowski space	2
Hutchinson’s theorem in semimetric spaces	2
Nodal solutions for Kirchhoff equations with Choquard nonlinearity	2
Nonlocal differential equations with convex convolution coefficients	2
Symplectic embeddings into disk cotangent bundles	2
On the number of positive solutions for a four-point boundary value problem with generalized Laplacian	2
Existence and relaxation of solutions for evolution differential inclusions with maximal monotone operators	2
Coisotropic Hofer–Zehnder capacities of convex domains and related results	2
Multiple results to $$\phi $$-Laplacian singular Liénard equation and applications	2
New examples of subsets of c with the FPP and stability of the FPP in hyperconvex spaces	2
Covariant constancy of quantum Steenrod operations	2
Hamiltonian perturbations in contact Floer homology	2
An Arnold-type principle for non-smooth objects	2
Multiple solutions for the fractional p-Laplacian with jumping reactions	2
Ekeland variational principle on quasi-weighted graphs: improving the work–family balance	2
Measures of noncompactness in modular spaces and fixed point theorems for multivalued nonexpansive mappings	2
Multiplicity of solutions for a class of upper critical Choquard equation with steep potential well	2