J. Aczél, 5. Remark, in: Report of meeting. The Forty-second International Symposium on Functional Equations, June 20–27, 2004, Opava, Czech Republic, Aequationes Math. 69 (2005), no. 1–2, p. 183.
Google Scholar

J. Aczél and J. Dhombres, Functional Equations in Several Variables, Encyclopedia Math. Appl., 31, Cambridge University Press, Cambridge, 1989.
Google Scholar

A.R. Baias, D. Otrocol, and M. Rus, Report of Meeting. The 61st International Symposium on Functional Equations, Cluj-Napoca (Romania), June 15-21, 2025, Aequationes Math. 99 (2025), no. 5, 2457–2479. DOI: 10.1007/s00010-025-01236-8.
Google Scholar

K. Baron, On some linear functional equations with continuous solutions, Aequationes Math. 99 (2025), no. 6, 2689–2698.
Google Scholar

F. Bellini, R.J.A. Laeven, and E. Rosazza Gianin, Robust return risk measures, Math. Financ. Econ. 12 (2018), no. 1, 5–32.
Google Scholar

D. Bugajewski, A. Galimberti, and P. Maćkowiak, On composition and Right Distributive Law for formal power series of multiple variables, Aequationes Math. 99 (2025), no. 1, 21–35.
Google Scholar

P. Burai, G. Kiss, and P. Szokol, Characterization of quasi-arithmetic means without regularity condition, Acta Math. Hungar. 165 (2021), no. 2, 474–485.
Google Scholar

P. Burai, G. Kiss, and P. Szokol, A dichotomy result for strictly increasing bisymmetric maps, J. Math. Anal. Appl. 526 (2023), no. 2, Paper No. 127269, 9 pp.
Google Scholar

J. Chmieliński and R. Stypka, Additive operators approximately preserving Birkhoff–James orthogonality, Aequationes Math. 99 (2025), no. 6, 2847–2854.
Google Scholar

C. de Boor and A. Pinkus, Proof of the conjectures of Bernstein and Erdős concerning the optimal nodes for polynomial interpolation, J. Approx. Theory 24 (1978), no. 4, 289–303.
Google Scholar

S.M. Enderami,M. Abtahi, A. Zamani, and P. Wójcik, An orthogonality relation in complex normed spaces based on norm derivatives, Linear Multilinear Algebra 72 (2024), no. 4, 687–705.
Google Scholar

A. Epebinu and R. Łukasik, Generalized orthogonality equations in normed spaces, Aequationes Math. 100 (2026), no. 1, Paper No. 5, 10 pp.
Google Scholar

A.D. Epebinu, T. Szostok, Inequalities for fractional integral with the use of stochastic orderings, Appl. Math. Comput. 466 (2024), Paper No. 128481, 12 pp.
Google Scholar

B. Fazekas and I. Fazekas, Convergence of sequences of ordered selections, preprint.
Google Scholar

X.-X. Gan, A generalized chain rule for formal power series, Commun. Math. Anal. 2 (2007), no. 1, 37–44.
Google Scholar

X.-X. Gan and D. Bugajewski, A note on formal power series, Comment. Math. Univ. Carolin. 51 (2010), no. 4, 595–604.
Google Scholar

X.-X. Gan and N. Knox, On composition of formal power series, Int. J. Math. Math. Sci. 30 (2002), no. 12, 761–770.
Google Scholar

D. Głazowska and J. Matkowski, Weakly associative functions, Aequationes Math. 99 (2025), no. 4, 1827–1841.
Google Scholar

W. Jarczyk, A category theorem for linear functional equations in the indeterminate case, Bull. Acad. Polon. Sci. Sér. Sci. Math. 29 (1981), no. 7–8, 371–372.
Google Scholar

W. Jarczyk, On a set of functional equations having continuous solutions, Glasnik Mat. Ser. III 17(37) (1982), no. 1, 59–64.
Google Scholar

W. Jarczyk, On linear functional equations in the determinate case, Glasnik Mat. Ser. III 18(38) (1983), no. 1, 91–102.
Google Scholar

W. Jarczyk, On continuous functions which are additive on their graphs, Ber. Math.-Statist. Sekt. Forschungsgesellsch. Joanneum, 292, Graz, 1988.
Google Scholar

W. Jarczyk, A recurrent method of solving iterative functional equations, Prace Nauk. Uniw. Śląsk. Katowic., 1206, Uniwersytet Śląski, Katowice, 1991.
Google Scholar

T.A. Kilgore, A characterization of the Lagrange interpolating projection with minimal Tchebycheff norm, J. Approx. Theory 24 (1978), no. 4, 273–288.
Google Scholar

G. Kiss, On noncontinuous bisymmetric strictly monotone operations, submitted, 2026. Available at arXiv:2601.16247v2.
Google Scholar

T. Kiss, A counterexample to Matkowski’s conjecture for quasi graph-additive functions, Aequationes Math. 100 (2026), no. 2, Paper No. 27, 8 pp.
Google Scholar

M. Lewandowski, Buying and selling price for risky lotteries and expected utility theory with gambling wealth, J. Risk Uncertain. 48 (2014), no. 3, 253–283.
Google Scholar

A. Lisak, M. Sablik, Trapezoidal rule revisited, Bull. Inst. Math. Acad. Sin. (NS) 6 (2011), no. 3, 347–360.
Google Scholar

J. Matkowski, Weakly associative functions and means - new examples and open questions, Aequationes Math. 99 (2025), no. 6, 2581–2597.
Google Scholar

Zs. Páles and A. Zakaria, On the equality problem of two-variable Bajraktarević means under first-order differentiability assumptions, Aequationes Math. 97 (2023), no. 2, 279–294.
Google Scholar

Zs. Páles and A. Zakaria, On the equality of generalized Bajraktarević means under firstorder differentiability assumptions, Aequationes Math. 99 (2025), no. 6, 2485–2503.
Google Scholar

P. Pasteczka, On the invariance equation for means of generalized power growth, Math. Inequal. Appl. 27 (2024), no. 3, 691–702.
Google Scholar

M.Z. Sarikaya, E. Set, H. Yaldiz, and N. Başak, Hermite-Hadamard’s inequalities for fractional integrals and related fractional inequalities, Math. Comput. Modelling 57 (2013), no. 9–10, 2403–2407.
Google Scholar

A. Witkowski, On invariance equation for means of power growth, Math. Inequal. Appl. 17 (2014), no. 3, 1091–1094.
Google Scholar