Search Results - "Functional equations"

Characterizing Function Behavior: Exponential Decay, Monotonicity, and Boundedness Through Schwarzian and Differential Inequalities.

Authors: Tarek, Bahloul¹ bahloul.tarek@univguelma.dz

Source: IAENG International Journal of Applied Mathematics. Jul2026, Vol. 56 Issue 7, p2728-2738. 11p.

Subjects: Differential inequalities, Functional equations, Monotonic functions, Exponential decay law, Dynamical systems, Differential invariants

ON DOUBLE q-LAPLACE TRANSFORM AND APPLICATIONS.

Authors: SADJANG, P. NJIONOU MBOUTNGAM, S.

Source: Kragujevac Journal of Mathematics. 2026, Vol. 50 Issue 4, p543-566. 24p.

Contraction‐Type Fixed‐Point Theorem for Bivariate/Multivariate Self‐Mappings in Fuzzy Banach Spaces and Hyers–Ulam Stability of Multivariate Functional Equations.

Authors: Lyu, Gang Liu, Yang Jin, Yuanfeng et al.

Source: Journal of Mathematics. 6/30/2026, Vol. 2026, p1-13. 13p.

A functional equation for monomial functions.

Authors: Gselmann, Eszter Iqbal, Mehak

Source: Journal of Applied Analysis. Jun2026, Vol. 32 Issue 1, p91-100. 10p.

Stability of Some Inequalities in Banach ∗-Algebras.

Authors: Chang, Ick-Soon Roh, Jaiok

Source: Mathematics (2227-7390). May2026, Vol. 14 Issue 9, p1407. 12p.

ON THE STABILITY OF A k-BALANCING FUNCTIONAL EQUATION.

Authors: GABER, AHMED AMOURAH, ALA SASA, TALA et al.

Source: Gulf Journal of Mathematics. 2026, Vol. 23 Issue 1, p1-10. 10p.

Characterizing the Logarithm Through Continuity, Monotonicity, and Functional Equations.

Authors: Haukkanen, Pentti Tossavainen, Timo

Source: College Mathematics Journal. May2026, Vol. 57 Issue 3, p187-192. 6p.

A CHARACTERIZATION OF ULAM HYPERSTABILITY.

Authors: Dãianu, Dan M.¹ dan.daianu.m@gmail.com

Source: Matematicki Vesnik. Sep2026, Vol. 78 Issue 3, p266-272. 7p.

ON THE ASYMPTOTIC BEHAVIORS ASSOCIATED WITH THE DAVISON FUNCTIONAL EQUATION.

Authors: TAREEGHEE, MOHAMMAD AMIN NAJATI, ABBAS BAE, JAE-HYEONG

Source: Kragujevac Journal of Mathematics. 2026, Vol. 50 Issue 5, p777-785. 9p.

The D'Alembert Inevitability Theorem.

Authors: Washburn, Jonathan Zlatanović, Milan Allahyarov, Elshad

Source: Mathematics (2227-7390). Apr2026, Vol. 14 Issue 8, p1386. 25p.

On symmetric bi-derivation of prime hyperrings.

Authors: Sonone, N. D. Pawar, K. F.

Source: Journal of Algebraic Hyperstructures & Logical Algebras. Apr2026, Vol. 7 Issue 1, p93-103. 11p.

From single-variable to Pexider-type: A new direct proof for Hyers-Ulam stability of functional equations in fuzzy Banach spaces.

Authors: Ji, Chun Lyu, Gang Fang, Ming et al.

Source: AIMS Mathematics. 2026, Vol. 11 Issue 4, p1-16. 16p.

On Ulam stability of generalized Hosszú functional equation.

Authors: Alsaeed, Salman El-hady, El-sayed Brzdęk, Janusz

Source: AIMS Mathematics. 2026, Vol. 11 Issue 4, p1-15. 15p.

A General System of Functional Equations Deriving From Additive, Quadratic, Cubic, and Quartic Mappings.

Authors: Donganont, Siriluk Bodaghi, Abasalt Alsinai, Ammar

Source: Journal of Mathematics. 3/31/2026, Vol. 2026, p1-15. 15p.

Stability and Superstability of a Linear Functional Equation on Restricted Domains.

Authors: Najati, Abbas Tareeghee, Mohammad Amin Rassias, Themistocles M. et al.

Source: Journal of Function Spaces. 3/19/2026, Vol. 2026, p1-8. 8p.

Approximate Bi-Affine Mappings.

Authors: Bae, Jae-Hyeong Park, Won-Gil

Source: Mathematics (2227-7390). Mar2026, Vol. 14 Issue 6, p1056. 12p.

Uniqueness of the Canonical Reciprocal Cost.

Authors: Washburn, Jonathan Zlatanović, Milan

Source: Mathematics (2227-7390). Mar2026, Vol. 14 Issue 6, p935. 19p.

A Generalized Bi-Quadratic–Drygas Functional System in Non-Archimedean Normed Spaces over p-Adic Numbers.

Authors: Tongsomporn, Janyarak Phonrakkhet, Sorravit

Source: Symmetry (20738994). Mar2026, Vol. 18 Issue 3, p514. 18p.

On Solving Certain Functional Equations of Dynamic Programming in Relational-Metric Space Through a Non-Unique Fixed-Point Theorem.

Authors: Filali, Doaa Alshaban, Esmail Alatawi, Adel et al.

Source: Symmetry (20738994). Mar2026, Vol. 18 Issue 3, p486. 13p.

Generalized Hyers-Ulam Stability of an Additive–Quadratic–Cubic–Quartic Functional Equation.

Authors: Jin, Sun-Sook Lee, Yang-Hi

Source: Symmetry (20738994). Mar2026, Vol. 18 Issue 3, p438. 13p.