## Found 244 Documents (Results 1–100)

100
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### Improvements on the stability of Euler-Lagrange type cubic maps in quasi-Banach spaces. (English)Zbl 07491539

MSC:  39B82 46A16
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### Stability of Euler-Lagrange-type cubic functional equations in quasi-Banach spaces. (English)Zbl 1459.39055

MSC:  39B82 39B52
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### Solution of a 3-D cubic functional equation and its stability. (English)Zbl 07515691

MSC:  39B52 39B72 39B82
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### Development and analysis of new approximation of extended cubic B-spline to the nonlinear time fractional Klein-Gordon equation. (English)Zbl 1482.65022

MSC:  65D07 65M70 34K37
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MSC:  39B52
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### A fixed point approach to the stability of the additive-cubic functional equations. (English)Zbl 1467.39021

MSC:  39B82 39B52
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### On approximate solutions of the generalized radical cubic functional equation in quasi-$$\beta$$-Banach spaces. (English)Zbl 1474.39062

MSC:  39B52 39B82
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### Stability of special functional equations on Banach lattices. (English)Zbl 1454.47062

MSC:  39B82 39B72
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### Intuitionistic fuzzy stability of an finite dimensional cubic functional equation. (English)Zbl 1453.39023

Pinelas, Sandra (ed.) et al., Differential and difference equations with applications. Selected papers based on the presentations at the fourth international conference, ICDDEA 2019, Lisbon, Portugal, July 1–5, 2019. Cham: Springer. Springer Proc. Math. Stat. 333, 713-731 (2020).
MSC:  39B82 54A40
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### Generalized Hyers-Ulam stability of some cubic-quadratic-additive type functional equations. (English)Zbl 1450.39018

MSC:  39B82 39B52
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MSC:  39B82
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### Stability of some cubic-additive functional equations. (English)Zbl 1447.39021

MSC:  39B82 39B52
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### The generalized hyper-stability of cubic functional equation. (English)Zbl 1429.39022

MSC:  39B82 39B52
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### Fundamental stabilities of various forms of complex valued functional equations. (English)Zbl 1423.39037

Dutta, Hemen (ed.) et al., Applied mathematical analysis: theory, methods, and applications. Cham: Springer. Stud. Syst. Decis. Control 177, 29-59 (2020).
MSC:  39B82 39B72
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### A fixed point approach to the stability of an additive-cubic-quartic functional equation. (English)Zbl 1431.39014

MSC:  39B82 39B22 47H10
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### On the Hyers-Ulam-Rassias stability of an additive-cubic-quartic functional equation. (English)Zbl 1434.39025

MSC:  39B82 39B52
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### A fixed point approach to the stability of a quadratic-cubic-quartic functional equation. (Korean. English summary)Zbl 1429.39023

MSC:  39B82 39B52
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### Hyperstability of a mixed type cubic-quartic functional equation in ultrametric spaces. (English)Zbl 1436.39020

MSC:  39B82 39B52 47H10
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### On the stability of a general quadratic-cubic functional equation in non-Archimedean normed spaces. (English)Zbl 1427.39015

MSC:  39B82 39B22 39B52
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### A fixed point approach to the stability of a quadratic-cubic functional equation. (English)Zbl 1426.39027

MSC:  39B82 47H10
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### Generalized Hyers-Ulam stability of a quadratic-cubic functional equation in modular spaces. (English)Zbl 1423.39036

MSC:  39B82 39B52

### Generalized hyperstability of the cubic functional equation in ultrametric spaces. (English)Zbl 1437.39011

MSC:  39B82 39B52 47H10
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### Generalized Ulam-Hyers stability of $$(a,b;k>0)$$-cubic functional equation in intuitionistic fuzzy normed spaces. (English)Zbl 1420.39023

MSC:  39B82 39B52 39B72
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### A general theorem on the stability of a class of functional equations including quartic-cubic-quadratic-additive equations. (English)Zbl 1425.39018

MSC:  39B82 39B52
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### On the stability of the Pexiderized cubic functional equation in multi-normed spaces. (English)Zbl 1413.39057

MSC:  39B82 39B52
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MSC:  39B52
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### Solution and stability of a mixed type functional equation. (English)Zbl 07388172

MSC:  39B82 39B22
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### Approximation on the reciprocal-cubic and reciprocal-quartic functional equations in non-Archimedean fields. (English)Zbl 1422.39062

MSC:  39B82 39B72 39B52
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### Hyperstability of cubic functional equation in ultrametric spaces. (English)Zbl 1400.39028

MSC:  39B82 39B52
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### Numerical solution of second order singularly perturbed delay differential equations via cubic spline in tension. (English)Zbl 1397.65027

MSC:  65D07 65L03 92-08
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MSC:  11D25
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### The mixed cubic-quartic functional equation. (English)Zbl 1399.39062

MSC:  39B82 39B22

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MSC:  35K57

### A fixed point method for the stability of a maximum preserving quadratic functional equation in Banach lattices. (English)Zbl 1419.39056

MSC:  39B82 46B42 47H10
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### On a new type of hyperstability for radical cubic functional equation in non-Archimedean metric spaces. (English)Zbl 1371.39036

Result. Math. 72, No. 1-2, 991-1005 (2017); erratum ibid. 72, No. 4, 2271 (2017).
MSC:  39B82 39B62 47H10
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### The Ulam stability of matrix intuitionistic fuzzy normed spaces. (English)Zbl 1375.39049

MSC:  39B82 46S40 39B52
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MSC:  39B82
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### General uniqueness theorem concerning the stability of additive, quadratic, and cubic functional equations. (English)Zbl 1419.39055

MSC:  39B82 39B52
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### Stablity of maximum preserving quadratic functional equation in Banach lattices. (English)Zbl 1389.39037

MSC:  39B22 39B82 39B52
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### The Ulam stability of Cauchy-Drygas functional equation. (Chinese. English summary)Zbl 1374.39039

MSC:  39B82 39B52 46S40
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### The Ulam stability of Drygas-quadratic functional equation. (Chinese. English summary)Zbl 1374.39038

MSC:  39B82 39B52 46S40
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MSC:  39B82
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### The Ulam stability of functional equation on matrix quasi-normed spaces. (Chinese. English summary)Zbl 1374.39036

MSC:  39B82 39B52

### Stability of the Euler-Lagrange type cubic functional equation. (Chinese. English summary)Zbl 1363.39035

MSC:  39B82 39B52
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### Fuzzy stability of an AQCQ-functional equation in matrix fuzzy normed spaces. (English)Zbl 1443.39016

Reviewer: Ismat Beg (Lahore)
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### A multi-dimensional functional equation having cubic forms as solutions. (English)Zbl 1352.39015

MSC:  39B52 39B82
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### A fixed point approach to the stability of a bi-cubic functional equation in 2-Banach spaces. (English)Zbl 1346.39038

MSC:  39B82 46B99
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### On the stability of a $$k$$-cubic functional equation in intuitionistic fuzzy $$n$$-normed spaces. (English)Zbl 1360.39022

MSC:  39B82 46S40
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### Stability of two types of cubic fuzzy set-valued functional equations. (English)Zbl 1352.39025

MSC:  39B82 47H10 54C60
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### On characterizations of set-valued dynamics. (English)Zbl 1352.39020

MSC:  39B82 54C60
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### A fixed point approach to the stability of an additive-quadratic-cubic-quartic type functional equation. (English)Zbl 1339.39028

MSC:  39B82 39B55 39B22
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### A fixed point approach to the stability of an AQCQ-functional equation in RN-spaces. (English)Zbl 1334.39051

MSC:  39B52 39B82 47H10
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### A fitted numerical scheme for second order singularly perturbed delay differential equations via cubic spline in compression. (English)Zbl 1422.34213

MSC:  34K28 65L10 34K26 34K10 65L12
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### A fixed point approach to the stability of a mixed additive-quadratic-cubic-quartic (AQCQ) functional equation in quasi-$$\beta$$-normed spaces. (English)Zbl 1371.39028

MSC:  39B52 39B72 39B82
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### Stabilities of a general $$k$$-cubic functional equation in Banach spaces. (English)Zbl 1355.39036

MSC:  39B82 39B52
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### On a Jensen-cubic functional equation and its Hyers-Ulam stability. (English)Zbl 1334.39053

MSC:  39B72 47H14
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### On a Jensen-quadratic functional equation and its Hyers-Ulam stability. (Chinese. English summary)Zbl 1340.39043

MSC:  39B82 39B52

### Simple $$AQ$$ and simple $$CQ$$ functional equations. (English)Zbl 1331.39018

MSC:  39B82 39B52 39B55

### Orthogonal stability of mixed type additive and cubic functional equations. (English)Zbl 1327.39019

MSC:  39B52 39B82
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### An AQCQ-functional equation in normed 2-Banach spaces. (English)Zbl 1325.39023

MSC:  39B82 39B52 39B55

### Stability of an ACQ-functional equation in various matrix normed spaces. (English)Zbl 1310.39016

MSC:  39B52 39B82
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### A general uniqueness theorem concerning the stability of monomial functional equations in fuzzy spaces. (English)Zbl 1311.39048

MSC:  39B82 39B52 46S40
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### Fixed points and orthogonal stability of functional equations in non-Archimedean spaces. (English)Zbl 1364.39024

MSC:  39B82 39B52 46S10

### On fuzzy approximately cubic type mapping in fuzzy Banach spaces. (English)Zbl 06679893

MSC:  47S40 47H10
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### Approximation of the cubic functional equations in Lipschitz spaces. (English)Zbl 1340.39040

MSC:  39B82 39B52
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### The Hyers-Ulam stability of cubic functrional equations in fuzzy Banach spaces. (English)Zbl 1333.39042

MSC:  39B82 39B52 46S40
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### An AQCQ-functional equation in matrix random normed spaces. (English)Zbl 1332.39024

Rassias, Themistocles M. (ed.) et al., Topics in mathematical analysis and applications. Cham: Springer (ISBN 978-3-319-06553-3/hbk; 978-3-319-06554-0/ebook). Springer Optimization and Its Applications 94, 523-540 (2014).
MSC:  39B82 39B52 46S50
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### Hyers-Ulam stability of set-valued mappings. (English)Zbl 1320.39035

Rassias, Themistocles M. (ed.) et al., Mathematics without boundaries. Surveys in pure mathematics. New York, NY: Springer (ISBN 978-1-4939-1105-9/hbk; 978-1-4939-1106-6/ebook). 323-336 (2014).
MSC:  39B82 47H04
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### On a Cauchy-cubic functional equation and its Hyers-Ulam stability. (Chinese. English summary)Zbl 1324.39027

MSC:  39B82 39B52 46S40

MSC:  39B82
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### Approximate generalized cubic $$\ast$$-derivations. (English)Zbl 1309.39017

MSC:  39B82 39B52 46L57
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### Stability of cubic functional equations in Banach spaces. (Chinese. English summary)Zbl 1313.39038

MSC:  39B82 39B52

### A spline collocation method for fractional pantograph delay differential equations. (English)Zbl 1313.65203

MSC:  65L60 65L05 65L03 34K28 34K37 65L70

### On a functional equation orginating from a mixed additive and cubic equation and its stability. (English)Zbl 1312.39034

MSC:  39B82 46S10 39B52

### Stability of a cubic functional equation in 2-normed spaces. (English)Zbl 1306.39019

MSC:  39B82 39B52
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### On the stability of a mixed functional equation deriving from additive, quadratic and cubic mappings. (English)Zbl 1298.39030

MSC:  39B82 39B52
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### Fixed point method for intuitionistic fuzzy stability of mixed type cubic-quartic functional equation. (English)Zbl 1298.39026

MSC:  39B82 39B52 46S40

### Orthogonal stability of a cubic-quadratic functional equation in orthogonality spaces. (English)Zbl 1440.39015

Akashi, Shigeo (ed.) et al., Proceedings of the seventh international conference on nonlinear analysis and convex analysis (NACA 2011), Busan, South Korea, August 2–5, 2011. Vol. II. Yokohama: Yokohama Publishers. 121-139 (2013).
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### Fuzzy stability of a functional equation deriving from quadratic and cubic functions. (Chinese. English summary)Zbl 1313.39042

MSC:  39B82 39B52 46S40

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### Solutions and stability of generalized mixed type QCA-functional equations in random normed spaces. (English)Zbl 1299.39024

MSC:  39B82 46S50 39B52
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