Results 61 to 66 of about 349 (66)

On the Ulam-type stability of impulsive differential equations with multiple time delays

open access: yesArab Journal of Basic and Applied Sciences
In this article, we conduct a rigorous analysis of the Ulam-type stability of first-order impulsive delay differential equations (IP-D-D-Es) with multiple time-dependent delays.
Cemil Tunç, Osman Tunç
doaj   +1 more source

Local stability of the Pexiderized Cauchy and Jensen's equations in fuzzy spaces

open access: yesJournal of Inequalities and Applications, 2011
Lex X be a normed space and Y be a Banach fuzzy space. Let D = {(x, y) ∈ X × X : ||x|| + ||y|| ≥ d} where d > 0. We prove that the Pexiderized Jensen functional equation is stable in the fuzzy norm for functions defined on D and ...
Kang Jung Im, Cho Yeol Je, Najati Abbas
doaj  

Lattictic non-archimedean random stability of ACQ functional equation

open access: yesAdvances in Difference Equations, 2011
In this paper, we prove the generalized Hyers-Ulam stability of the following additive-cubic-quartic functional equation 1 1 f ( x + 2 y ) + 1 1 f ( x - 2 y ) = 4 4 f ( x + y ) + 4 4 f ( x - y ) + 1 2 f ( 3 y ) - 4 8 f ( 2 ...
Saadati Reza, Cho Yeol
doaj  

Non-Archimedean stabilities of multiplicative inverse µ-functional inequalities

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
This study is motivated through the interesting non-Arcchimedean stability results of ρ-inequalities and ρ-equations arising from linear, second power, third power and fourth power mappings.
Dutta Hemen   +2 more
doaj   +1 more source

Stability of the second order partial differential equations

open access: yesJournal of Inequalities and Applications, 2011
We say that a functional equation (ξ) is stable if any function g satisfying the functional equation (ξ) approximately is near to a true solution of (ξ).
Ghaemi MB   +3 more
doaj  

On linear functional equations and completeness of normed spaces [PDF]

open access: yes, 2017
Fosner, Ajda   +3 more
core  

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