Results 31 to 40 of about 1,144 (174)

Solution and Stability of Euler-Lagrange-Rassias Quartic Functional Equations in Various Quasinormed Spaces [PDF]

open access: yesAbstract and Applied Analysis, 2013
We obtain the general solution of Euler-Lagrange-Rassias quartic functional equation of the following . We also prove the Hyers-Ulam-Rassias stability in various quasinormed spaces when .
Heejeong Koh, Dongseung Kang
doaj   +2 more sources

Solution and Stability of a Mixed Type Cubic and Quartic Functional Equation in Quasi-Banach Spaces [PDF]

open access: yesAbstract and Applied Analysis, 2009
We obtain the general solution and the generalized Ulam-Hyers stability of the mixed type cubic and quartic functional equation f(x+2y)+f(x−2y)=4(f(x+y)+f(x−y))−24f(y)−6f(x)+3f(2y) in quasi-Banach spaces.
M. Eshaghi Gordji   +3 more
doaj   +3 more sources

A GENERALIZED ADDITIVE-QUARTIC FUNCTIONAL EQUATION AND ITS STABILITY

open access: yesBulletin of the Korean Mathematical Society, 2015
An(x1, x2, . . . , xn) = An(xπ(1), xπ(2), . . . , xπ(n)) for every permutation {π(1), π(2), . . . , π(n)} of {1, 2, . . . , n} where n is a positive number, then a function An is called symmetric. Denote the diagonal element An(x, x, . . . , x) by A (x) if An(x1, x2, . . .
CHARINTHIP HENGKRAWIT   +1 more
exaly   +3 more sources

A Fixed Point Approach to the Stability of an Additive-Quadratic-Cubic-Quartic Functional Equation

open access: yesFixed Point Theory and Applications, 2010
Using the fixed point method, we prove the generalized Hyers-Ulam stability of the following additive-quadratic-cubic-quartic functional equation in Banach spaces.
Kim Ji-hye, Park Choonkil, Lee JungRye
doaj   +1 more source

A Note to Paper "On the Stability of Cubic Mappings and Quartic Mappings in Random Normed Spaces"

open access: yesJournal of Inequalities and Applications, 2009
Recently, Baktash et al. (2008) proved the stability of the cubic functional equation and the quartic functional equation in random normed spaces. In this note, we correct the proofs.
Cho YJ, Saadati R, Vaezpour SM
doaj   +1 more source

Nonlinear approximation of an ACQ-functional equation in nan-spaces

open access: yesFixed Point Theory and Applications, 2011
In this paper, using the fixed point and direct methods, we prove the generalized Hyers-Ulam stability of an additive-cubic-quartic functional equation in NAN-spaces. Mathematics Subject Classification (2010) 39B52·47H10·26E30·46S10·
Lee Jung   +2 more
doaj   +2 more sources

Quadratic-Quartic Functional Equations in RN-Spaces [PDF]

open access: yesJournal of Inequalities and Applications, 2009
11 ...
Choonkil Park   +2 more
openaire   +5 more sources

Stability of Quartic Functional Equations in the Spaces of Generalized Functions [PDF]

open access: yesAdvances in Difference Equations, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lee Y.-S., Chung S.-Y.
openaire   +4 more sources

A Remark for the Hyers–Ulam Stabilities on n-Banach Spaces

open access: yesAxioms, 2020
In this article, we deal with stabilities of several functional equations in n-Banach spaces. For a surjective mapping f into a n-Banach space, we prove the generalized Hyers–Ulam stabilities of the cubic functional equation and the quartic functional ...
Jaeyoo Choy, Hahng-Yun Chu, Ahyoung Kim
doaj   +1 more source

Freeze-Drying <i>Chlorella vulgaris</i> by Using Aquafaba, Deactivated Yeast, Inulin and Maltodextrin. [PDF]

open access: yesFood Sci Nutr
This study investigates the freeze‐drying efficiency of Chlorella vulgaris cultivated in a photobioreactor, utilizing novel and traditional carrier agents including aquafaba, deactivated yeast, inulin, and maltodextrin. The findings highlight the comparative effects of these matrices on the structural integrity and physical properties of the microalgae
Tamtürk F   +6 more
europepmc   +2 more sources

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