Aequationes Mathematicae

Article	Citations
On a functional equation on groups in two variables	45
Gromov hyperbolicity of Johnson and Kneser graphs	27
On the functional equation $$\hbox {f}(\hbox {x}+\hbox {y})=\hbox {g}(\hbox {xy})$$	24
Some moduli related to $$\rho _{\pm }$$-orthogonalities and semi-orthogonality in Banach spaces	14
A generalization of a theorem of von Neumann	13
The minmin coalition number in graphs	9
Sparse groups need not be semisparse	7
Homomorphisms from Functional Equations: The Goldie Equation, II	7
Skew Dyck paths with air pockets	6
A note on the Radiant formula and its relations to the sliced Wasserstein distance	5
Angular structure of equiangular cones in Euclidean spaces	5
Hyers-Ulam stability of a general linear partial differential equation	5
Sections in functional equations: stability and hyperstability	4
The solvability cardinal of the class of polynomials	4
Vector-valued Banach limits and the linear span property	4
On isoptics and isochordal-viewed curves	4
Kadec-Klee property in Musielak-Orlicz function spaces equipped with the Orlicz norm	4
Systems of functional equations and generalizations of certain functions	4
Refinements of Jensen’s inequality by uniformly convex functions	4
Non-existence of measurable solutions of certain functional equations via probabilistic approaches	4
K-subadditive and K-superadditive set-valued functions bounded on “large” sets	4
Note on generalized Archimedes–Borchardt algorithm	4
An orthogonality type based on invariant inner products	4
A Levi–Civita functional equation on semigroups	4
Fejér type inequalities for higher order convex functions and quadrature formulae	4

Packing squares into a rectangle with a relatively small area	3
n-gon centers and central lines	3
Moment functions and exponential monomials on commutative hypergroups	3
On metric stability of set-valued subadditive functions	3
On a combinatorial identity of Gavrea and Ivan and related results	3
On alienation of two functional equations of quadratic type	3
On the existence of m-norms in vector spaces over valued fields	3
Inequalities of Sherman type involving both $$h_1$$-convex and $$h_2$$-concave functions with applications	3
Polynomially EP operators	3
Certain density theorems applied to the embeddability of iteration semigroups	3
Some new minimax inequalities for centered convex bodies	2
On the minimality of the Winterbottom shape	2
Some characterizations of the disc by properties of isoptic triangles	2
On digital sequences associated with Pascal’s triangle	2
A note on the four color theorem	2
Maciej Sablik	2
The monomial functional equation for connected Lie groups	2
Correction to: Kadec-Klee property in Musielak-Orlicz function spaces equipped with the Orlicz norm	2
On a multiplicative distribution of functions in complex plane	2
The Hardy–Littlewood–Pólya inequality of majorization in the context of $$\mathbf {\omega }$$–$$\textbf{m}$$–star-convex functions	2
On and around the balanced Cauchy equation	2
Semi-classical 2-dimensional Minkowski planes	2
On a family of matrix equalities that involve multiple products of generalized inverses	2
Remarks on Wright-convex functions	2
Well-posedness for a class of pseudo-differential hyperbolic equations on the torus	2
On a generalized notion of metrics	2
The cosine addition and subtraction formulas on non-abelian groups	2
Bisector fields and pencils of conics	2
Embedding euclidean distance graphs in $${\mathbb {R}}^n$$ and $${\mathbb {Q}}^n$$	2
An upper bound of the density for packing of congruent hyperballs in hyperbolic $$3-$$space	2
Set-valued dynamics related to convex-valued m-mappings	2
On the solvability of the (SSIE) with operator $${D}_{x} {\mathbf { * }}\left( { s}_{ R}^{{\textbf{0}}} \right) _{{{{\Sigma }} - {\lambda I}}} {{ \subset }}{ s}_{ R}^{{{0}}} $$, involving the fine spe	2
Odd strength spherical designs attaining the Fazekas–Levenshtein bound for covering and universal minima of potentials	2
Properties of Motzkin triangle and t-generalized Motzkin sequences	2
Deviation from equidistance for one-dimensional sequences	2
Homi-repair under iteration (II): oscillating discontinuities and pre-discontinuities	2
Balanced Stirling numbers	2
A Kannappan-sine subtraction law on semigroups	2
Pexider invariance equation for embeddable mean-type mappings	2
General hyperstability criteria for Jensen-type equations	2
On the variable-order fractional derivatives with respect to another function	2
On surface of Apollonius of two ellipsoids	1
A class of functional equations for additive functions	1
A generalization of the cosine addition law on semigroups	1
Sections and projections of nested convex bodies	1
A divided-difference characterization of polynomials over finite fields of characteristic two	1
Numerical semigroups bounded by the translation of a plane monoid	1
Coincidence theory for lower semicontinuous type maps with decomposable values	1
Reduction formulas for higher order derivations and a hypergeometric identity	1
Equalities for mixed operations of Moore–Penrose and group inverses of a matrix	1

General criteria for hyperstability of Cauchy-type equations	1
Regular polygons on isochordal-viewed hedgehogs	1
A note on convex solutions to an equation on open intervals	1
Refinements of discrete and integral Jensen inequalities with Jensen’s gap	1
The equation $$\pmb {f(xy) = f(x)h(y) + g(x)f(y)}$$ and representations on $$\pmb {\mathbb {C}^2}$$	1
On the $${A_{\!\mathbb {C}}}$$-rank of multidigraphs	1
Finite dimensional varieties over the Heisenberg group	1
Complementary means with respect to a nonsymmetric invariant mean	1
On graceful antimagic graphs	1
Partitions associated to class groups of imaginary quadratic number fields	1
Correction to: Regularity properties of k-Brjuno and Wilton functions	1
Row-summable matrices with application to generalization of Schröder’s and Abel’s functional equations	1
Recent progress on minimal hypersurfaces with cylindrical tangent cones	1
Another approach to K-subadditivity	1
Common positive solutions for two non-linear matrix equations using fixed point results in b-metric-like spaces	1
On the Li–Zheng theorem	1
New inequalities related to superquadratic functions	1
On an alternative additive-quadratic functional equation	1
Two-sided delay-difference equations and evolution maps	1
Orthogonality induced by norm derivatives: a new geometric constant and symmetry	1
Set-valued solutions of a two-variable functional equation with involutions	1
Twisted coefficients on coarse spaces and their corona	1
A characterization of the Euclidean ball via antipodal points	1
A two-vertex theorem for normal tilings	1
Extensions of the sine addition law with an extra term	1
Bases consisting of self-referential functions in Banach spaces	1
Rigidity of hypersurfaces and Moser–Bernstein type results in certain warped products, with applications to pseudo-hyperbolic spaces	1
The Goldie Equation: III. Homomorphisms from functional equations	1
On the equality problem of two-variable Bajraktarević means under first-order differentiability assumptions	1
Continuous selections and collectively fixed point theory with applications to generalized games	1
On q-poly-Bernoulli numbers arising from combinatorial interpretations	1
Transitive quasi-uniform structures depending on a parameter	1
Global forcing number for maximal matchings in corona products	1
Generalized Vincze’s functional equations on any group in connection with the maximum functional equation	1
Zero utility principles coinciding on binary risks	1
A note on the Choquet type operators	1
On multiplicative functions which are additive on positive cubes	1
Casting light on integer compositions	1
Functional equations, alternating expansions, and generalizations of the Salem functions	1
There is at most one continuous invariant mean	1
A note on iterated maps of the unit sphere	1
On a class of functional difference equations: explicit solutions, asymptotic behavior and applications	1
Proof of a conjecture due to Chu on Gosper-type sums	1
Area computation for triangular area or perimeter bisecting deltoids	1
Position of the centroid of a planar convex body	1
Refining the Hermite-Hadamard inequalities for operator convex maps in multiple operator variables	1
Vector-valued invariant means	1
Interview with Ludwig Reich	1
Isometry groups of six-dimensional nilmanifolds	0
Note on the variance of generalized random polygons	0
On iterative roots of injective functions	0
Plenty of hyperbolicity on a class of linear homogeneous jerk differential equations	0
An alternative equation for generalized monomials	0
Hyers–Ulam stability of integral equations with infinite delay	0
Symmetric probabilistic divergence generator	0
On distributional spectrum of piecewise monotonic maps	0
On the maximal part in unrefinable partitions of triangular numbers	0
An analogue of a theorem of Steinitz for ball polyhedra in $$\mathbb {R}^3$$	0
Quadratic functions fulfilling an additional condition along the hyperbola $$\pmb {xy = 1} $$	0
A functional equation related to Whitehead’s equation on groups	0
Limit theorems for Bajraktarević and Cauchy quotient means of independent identically distributed random variables	0
The order structure of forts iterated by quadratic polynomials	0
Alienation and stability of Jensen’s and other functional equations	0
Quadratic ellipsoids in Minkowski geometries	0
Volumetric bounds for intersections of congruent balls in Euclidean spaces	0
Some extremal problems for polygons in the Euclidean plane	0
On the convergence of generalized power series solutions of q-difference equations	0
Homogeneity of isosceles orthogonality, transitivity of the norm, and characterizations of inner product spaces	0
On forward-order law for core inverse in rings	0
Rotation number of 2-interval piecewise affine maps	0
Congruence properties of Lehmer-Euler numbers	0
Characterizations of weighted generalized inverses	0
New generalizations of Steffensen’s inequality by Lidstone’s polynomial	0
Smooth solutions of a class of iterative functional equations	0
Some investigations on the U-partial order induced by uninorms	0
Differentiable solutions of an equation with product of iterates	0
A note on ideal C$$^*$$-completions and amenability	0
The 59th International Symposium on Functional Equations Hotel Aurum, Hajdúszoboszló (Hungary), June 18–25, 2023	0
System of equations and configurations in the Euclidean space	0
Vortex filament flows for curves in a 3-dimensional pseudo-Riemannian manifold	0

Shannon’s entropy and its bounds for some a priori known equiprobable states	0
A functional equation related to Wigner’s theorem	0
Characterization of the Bernoulli polynomials via the Raabe functional equation	0
A Tverberg type theorem for staircase convexity	0
Quasi-Cauchy quotients and means	0
On multiplicative functions additive on Goldbach-type sets	0
On optimal inequalities between three-point quadratures	0
Continuous selecting families and collectively fixed point theory	0
Solutions of the functional difference Toda equation from centered Darboux transformation	0
A Pexider equation containing the aritmetic mean	0
Radon and Carathéodory type theorems for staircase convexity	0
On a polygonal mean value property	0
Alienation of the quadratic, exponential and d’Alembert functional equations	0
Metric symmetry and distance distribution functions on graphs	0
Almost multiplicative maps with respect to almost associative operations on Banach algebras	0
On Wendel’s equality for intersections of balls	0
Redistributing algorithms and Shannon’s Entropy	0
On the Jensen convexity of quasideviation and Bajraktarević means	0
Correction to: Linked pairs of additive functions	0
László Székelyhidi	0
On measure of noncompactness in Lebesgue and Sobolev spaces with an application to the functional integro-differential equation	0
Bernoulli numbers with level 2	0
On the critical exponents of generalized ballot sequences in three dimensions and large tandem walks	0
A new equation related to two-sided centralizers in prime rings	0
Operators with a non-trivial closed invariant affine subspace	0
On distance spectral radius of graphs with given number of pendant paths of fixed length	0
A generalization of the Kannappan-sine addition law on semigroups	0
Min-phase-isometries on the unit sphere of $$\mathcal {L}^\infty (\Gamma )$$-type spaces	0
On a general bilinear functional equation	0
Convex functions and approximate Birkhoff–James orthogonality	0
On sets related to integer partitions with quasi-required elements and disallowed elements	0
Means, Milne’s inequality, and quadrilateral area	0
Analytical aspects of a q, r-analogue of poly-Stirling numbers of both kinds	0
A note on a functional equation on groups with involutions in two variables	0
On the state of the second part of Hilbert’s fifth problem	0
Invariant affine subspaces	0
Stability of $$\varepsilon $$-isometries and their symmetrizations on the positive cones of $$c_0$$	0
Disprove of a conjecture on the double Roman domination number	0
Rotations on the triangular grid: angles of changes of the neighborhood motion map	0
Explicit forms of invariant means: complementary results to Gauss $$\left( {\mathcal {A}},{\mathcal {G}}\right) $$-theorem and some applications	0
Functional equations and martingales	0
On quadrature means	0
Uniformly-like convex solutions for the polynomial-like iterative equation in Banach spaces	0
On the functional equation $$\varvec{f(\alpha x+\beta )=f(x)}$$	0
On total isolation in graphs	0
Set valued pexiderized quadratic functional equation	0
New constructions of t-norms and t-conorms on bounded lattices	0
Extending EP matrices by means of recent generalized inverses	0
Weighted Ingham-type inequalities via the positivity of quadratic polynomials	0
A note on homotopy extension KKM type maps	0
Points of monotonicity in F-normed Orlicz function spaces	0
On the extremal compatible linear connection of a generalized Berwald manifold	0
Iterated rascal triangles	0
Arithmetic properties for generalized cubic partitions and overpartitions modulo a prime	0
Randomly r-orthogonal factorizations in bipartite graphs	0
Line conjugates in the plane of a triangle	0
On polyhedral graphs and their complements	0
Stability results and separations theorems	0
Levin–Cochran–Lee inequalities and best constants on homogeneous groups	0
On curves with circles as their isoptics	0
Independent transversal domination in trees, products and under local changes to a graph	0
A survey on measures of noncompactness with some applications in infinite systems of differential equations	0
On evolutes of curves in the isotropic plane	0
The Artin-Hasse series and Laguerre polynomials modulo a prime	0
A classification of non-monotonicity height for piecewise monotone functions (I): increasing case	0
The solvability of $$f(p(x)) = q(f(x))$$ for given strictly monotonous continuous real functions p, q	0
On when the union of two algebraic sets is algebraic	0
Angular structure of Reuleaux cones	0
Linear functional equations and their solutions in generalized Orlicz spaces	0
Exponential semi-polynomials and their characterization on semigroups	0
Characterization of t-affine differences and related forms	0
Axiomatic characterization of the $$\chi ^{2}$$ dissimilarity measure	0
Curves that allow the motion of a regular polygon	0
Extensions of recent combinatorial refinements of discrete and integral Jensen inequalities	0
Some study of the approximate Birkhoff orthogonality and orthogonality of bounded linear operators	0
An Application of Viscosity Approximation Type Iterative Method in the Generation of Mandelbrot and Julia Fractals	0
Spectra for upper triangular linear relation matrices through local spectral theory	0
A simple proof of the rationality of Takagi-like functions	0
Pexiderized d’Alembert functional equations on monoids	0
Elliptic curves and continued fractions	0
Dimension preserving approximation	0
On some classes of multiplicative functions	0
Self-avoiding walks of specified lengths on rectangular grid graphs	0
Distributivity equations for aggregation operations with annihilator over uninorms	0
Iterative roots of PM functions extended from the characteristic interval	0
Three inequalities that characterize the exponential function	0
Maker-Breaker resolving game played on corona products of graphs	0
On the differentiability of the solutions of translation equation	0
Quaternion-valued multiplicative functions on semigroups	0
Strongly convex solutions of an iterative functional equation	0
Cosine subtraction laws	0
Kannappan’s integral equation with an anti-endomorphism	0
On spectral irregularity of graphs	0
Weighted Gaussian entropy and determinant inequalities	0
Using Aichinger’s equation to characterize polynomial functions	0