## Found 593 Documents (Results 1–100)

100
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### Hyers-Ulam-Rassias stability of high-dimensional quaternion impulsive fuzzy dynamic equations on time scales. (English)Zbl 1482.34010

MSC:  34A07 34N05 11R52
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### Stability of a system of Euler-Lagrange type cubic functional equations in non-Archimedean 2-normed spaces. (Persian. English summary)Zbl 07481970

MSC:  39B72 46S10 54E70
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### A fixed point approach to the Hyers-Ulam-Rassias stability problem of pexiderized functional equation in modular spaces. (English)Zbl 1481.39024

MSC:  39B82 39B52 47H10
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### Hyers-Ulam stability for differential equations and partial differential equations via Gronwall lemma. (English)Zbl 07404631

Rassias, Themistocles M. (ed.), Approximation theory and analytic inequalities. Cham: Springer. 59-69 (2021).
MSC:  34D10 26D10 35B20
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### Hyers-Ulam and Hyers-Ulam-Rassias stability of first-order nonlinear dynamic equations. (English)Zbl 1471.34171

MSC:  34N05 34G20 34D10
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### A new approach to the Hyers-Ulam-Rassias stability of differential equations. (English)Zbl 1471.34049

MSC:  34B15 34D10 35J25
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### Hyers-Ulam and Hyers-Ulam-Rassias stability of first-order linear dynamic equations. (English)Zbl 1474.34624

MSC:  34N05 34D10 34G10
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### A study on fractional differential equations using the fractional Fourier transform. (English)Zbl 07485385

MSC:  39-XX 34-XX
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### On the existence and uniqueness of the solution of a probabilistic functional equation approached by the Banach fixed point theorem. (English)Zbl 07449562

MSC:  47H09 47H10
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### Stability of the general mixed additive and quadratic functional equation in quasi Banach spaces. (English)Zbl 1480.39022

MSC:  39B52 39B82
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MSC:  39B82
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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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### Existence, uniqueness and stability of implicit switched coupled fractional differential equations of $$\psi$$-Hilfer type. (English)Zbl 07336601

MSC:  26A33 34A08 34B27
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### Hyers-Ulam-Rassias stability of a mixed type cubic-quartic functional equation in 2-Banach spaces. (Chinese. English summary)Zbl 1463.39067

MSC:  39B82 39B52

### Further results on Ulam stability for a system of first-order nonsingular delay differential equations. (English)Zbl 1456.34074

MSC:  34K27 34K20
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### Best constant for Ulam stability of first-order $$h$$-difference equations with periodic coefficient. (English)Zbl 1451.39014

MSC:  39A30 39B82
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### On Ulam’s type stability criteria for fractional integral equations including Hadamard type singular kernel. (English)Zbl 1463.45020

MSC:  45G05 26A33 39B82
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### Euler-Lagrange radical functional equations with solution and stability. (English)Zbl 1463.39055

MSC:  39B52 39B72 39B82
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### Approximate solutions of homomorphisms and derivations of the generalized Cauchy-Jensen functional equation in $$C^*$$-ternary algebras. (English)Zbl 1442.39030

MSC:  39B52 39B82 47H10
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### On the stability problem of differential equations in the sense of Ulam. (English)Zbl 1439.34061

MSC:  34D10 47N20
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### Measure zero stability problem for Drygas functional equation with complex involution. (English)Zbl 1459.39054

Anastassiou, George A. (ed.) et al., Frontiers in functional equations and analytic inequalities. Cham: Springer. 183-193 (2019).
MSC:  39B82 39B52
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### General solution and Hyers-Ulam stability of duotrigintic functional equation in multi-Banach spaces. (English)Zbl 1459.39050

Anastassiou, George A. (ed.) et al., Frontiers in functional equations and analytic inequalities. Cham: Springer. 125-141 (2019).
MSC:  39B52 39B82
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### Approximation by cubic mappings. (English)Zbl 1447.39015

Brzdęk, Janusz (ed.) et al., Ulam type stability. Based on the conferences on Ulam type stability (CUTS), Cluj-Napoca, Romania, July 4–9, 2016 and Timisoara, Romania, October 8–13, 2018. Cham: Springer. 153-165 (2019).
MSC:  39B52 39B82 39B12
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### On the stability of two functional equations arising in mathematical biology and theory of learning. (English)Zbl 1474.39074

MSC:  39B82 47H10

### Hyers-Ulam stability of $$n$$th order linear differential equation. (English)Zbl 1448.34114

MSC:  34D10 34B15 34A30
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### Ulam stabilities for nonlinear Volterra delay integro-differential equations. (English)Zbl 1443.45009

J. Contemp. Math. Anal., Armen. Acad. Sci. 54, No. 5, 276-287 (2019) and Izv. Nats. Akad. Nauk Armen., Mat. 2019, No. 5, 27-43 (2019).
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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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### Ulam’s type stability of higher order nonlinear delay differential equations via integral inequality of Grönwall-Bellman-Bihari’s type. (English)Zbl 1428.34087

MSC:  34K05 39B82 34D10
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### Stability of some fractional systems and Laplace transform. (Chinese. English summary)Zbl 1438.34055

MSC:  34A08 34D10 44A10

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### On approximation solutions of the Cauchy-Jensen and the additive-quadratic functional equation in paranormed spaces. (English)Zbl 1438.39048

MSC:  39B82 39B52
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### Revision and extension on Hyers-Ulam stability of homomorphisms in quasi-Banach algebras. (English)Zbl 1422.39061

MSC:  39B82 39B52
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### $$\beta$$-Hyers-Ulam-Rassias stability of semilinear nonautonomous impulsive system. (English)Zbl 1416.34013

MSC:  34A37 34D20
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### Stability of an AQCQ functional equation in non-Archimedean $$(n, \beta)$$-normed spaces. (English)Zbl 1464.39020

MSC:  39B52 39B82 39B72
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### Approximation of a system of rational functional equations of three variables. (English)Zbl 1410.39048

MSC:  39B82 39B72
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### Approximation of the generalized Cauchy-Jensen functional equation in $$C^\ast$$-algebras. (English)Zbl 07445952

MSC:  39B52 47H10
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### Hyers-Ulam stability of first-order non-linear delay differential equations with fractional integrable impulses. (English)Zbl 07406312

MSC:  34G20 34A37 34K05
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### A correction to approximation of generalized homomorphisms in quasi-Banach algebras. (English)Zbl 1463.39054

MSC:  39B52 46H05
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### On the stability of homomorphisms and $$k$$-derivations on $$\Gamma$$-Banach algebras. (English)Zbl 1424.39053

MSC:  39B52 39B82

### A fixed point approach to the stability of a nonlinear Volterra integrodifferential equation with delay. (English)Zbl 07033240

MSC:  47H10 45J05 45M10
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### New theorems for Hyers-Ulam stability of Lienard equation with variable time lags. (English)Zbl 1408.34055

MSC:  34K27 47N20
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### NAN-RN approximately generalized additive functional equations. (English)Zbl 1405.39013

Rassias, Themistocles M. (ed.), Applications of nonlinear analysis. Cham: Springer (ISBN 978-3-319-89814-8/hbk; 978-3-319-89815-5/ebook). Springer Optimization and Its Applications 134, 483-506 (2018).
MSC:  39B82
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### Fixed point and nearly $$m$$-dimensional Euler-Lagrange-type additive mappings. (English)Zbl 1402.39014

Daras, Nicholas J. (ed.) et al., Modern discrete mathematics and analysis. With applications in cryptography, information systems and modeling. Cham: Springer (ISBN 978-3-319-74324-0/hbk; 978-3-319-74325-7/ebook). Springer Optimization and Its Applications 131, 235-249 (2018).
MSC:  39B82 47H10
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### Different types of Hyers-Ulam-Rassias stabilities for a class of integro-differential equations. (English)Zbl 07454879

MSC:  45M10 34K20 45J05
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### A fixed point approach to the stability of sextic Lie $$\ast$$-derivations. (English)Zbl 07453949

MSC:  39B55 39B72 47B47
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MSC:  35B35
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### Hyers-Ulam-Rassias stability of a functional equation related to general quadratic mappings. (English)Zbl 1402.39013

MSC:  39B82 39B52
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### Stability of a mixed type functional equation in Banach spaces. (Chinese. English summary)Zbl 1399.39064

MSC:  39B82 39B52
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### Solution and Hyers-Ulam-Rassias stability of a mixed type quadratic-additive functional equation with a parameter in quasi-Banach spaces. (Chinese. English summary)Zbl 1399.39072

MSC:  39B82 39B52

### Direct method and approximation of the reciprocal difference functional equations in various normed spaces. (English)Zbl 1399.39068

MSC:  39B82 39B52

### On the fuzzy stability problem of generalized cubic mappings. (English)Zbl 1375.39045

MSC:  39B52 39B82
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MSC:  39B82
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### Stability of d’Alembert’s functional equation with perturbations of all variables. (English)Zbl 1381.39026

MSC:  39B82 39B22 39B52
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### Solution of the Ulam stability problem for Euler-Lagrange-Jensen $$k$$-quintic mappings. (English)Zbl 1369.39029

MSC:  39B82 39B52
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### Hyers-Ulam stability of a class second differential equation $$y''(x)+p(x)y'(x)+q(x)y(x)=F(y(x))$$. (English)Zbl 1368.34069

MSC:  34D10 47N20 47H10
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### Existence and stability of Stieltjes quadratic functional integral equations. (English)Zbl 1361.45003

MSC:  45G10 45M05 26A33
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### Asymptotic aspect of quadratic functional equations and super stability of higher derivations in multi-fuzzy normed spaces. (English)Zbl 1424.46104

MSC:  46S40 39B82 39B52
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### Non-Archimedian stability of generalized Jensen’s and quadratic equations. (English)Zbl 1413.39054

MSC:  39B82 39B72 39B52
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### 3-variable Jensen $$\rho$$-functional inequalities and equations. (English)Zbl 1379.39016

MSC:  39B62 39B52 39B82
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### Hyers-Ulam-Rassias stability on amenable groups. (English)Zbl 1378.39015

Pardalos, Panos M. (ed.) et al., Contributions in mathematics and engineering. In honor of Constantin Carathéodory. With a foreword by R. Tyrrell Rockafellar. Cham: Springer (ISBN 978-3-319-31315-3/hbk; 978-3-319-31317-7/ebook). 377-392 (2016).
MSC:  39B82 39B52
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### Hyers-Ulam stability of Wilson’s functional equation. (English)Zbl 1378.39017

Pardalos, Panos M. (ed.) et al., Contributions in mathematics and engineering. In honor of Constantin Carathéodory. With a foreword by R. Tyrrell Rockafellar. Cham: Springer (ISBN 978-3-319-31315-3/hbk; 978-3-319-31317-7/ebook). 165-183 (2016).
MSC:  39B82 39B52
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### Approximation of functions by additive and by quadratic mappings. (English)Zbl 1370.41058

Rassias, Themistocles M. (ed.) et al., Mathematical analysis, approximation theory and their applications. Cham: Springer (ISBN 978-3-319-31279-8/hbk; 978-3-319-31281-1/ebook). Springer Optimization and Its Applications 111, 281-292 (2016).
MSC:  41A65 39B82
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### Hyers-Ulam-Rassias stability of the generalized Wilson’s functional equation. (English)Zbl 1375.39048

Rassias, Themistocles M. (ed.) et al., Mathematical analysis, approximation theory and their applications. Cham: Springer (ISBN 978-3-319-31279-8/hbk; 978-3-319-31281-1/ebook). Springer Optimization and Its Applications 111, 219-233 (2016).
MSC:  39B82 39B52
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### Stability of a generalized quadratic functional equation in intuitionistic fuzzy 2-normed space. (English)Zbl 1462.39023

MSC:  39B52 39B82 46S40
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### The stability of a generalized affine functional equation in fuzzy normed spaces. (English)Zbl 1461.39012

MSC:  39B52 39B82 46S40
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### Stability of a functional equation in complex Banach spaces. (English)Zbl 1401.39030

MSC:  39B82 39B72 47H10

### Approximate a quadratic mapping in multi-Banach spaces, a fixed point approach. (English)Zbl 1361.39012

MSC:  39B82 39B52
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### A Hyers-Ulam-Rassias stability result for functional equations in intuitionistic fuzzy Banach spaces. (English)Zbl 1360.39023

MSC:  39B82 39B52 46S40
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### Hyers-Ulam-Rassias type stability of polynomial equations. (English)Zbl 1357.39019

MSC:  39B82 39B22 26C05

### On the stability of a radical cubic functional equation in quasi-$$\beta$$-spaces. (English)Zbl 1356.41009

MSC:  41A30 39B82
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### Stability of the Euler-Lagrange type cubic functional equation. (Chinese. English summary)Zbl 1363.39035

MSC:  39B82 39B52
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### A fixed point approach to the fuzzy stability of a mixed type functional equation. (English)Zbl 1363.39036

MSC:  39B82 39B52 46S40
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### Stability of higher-order nonlinear impulsive differential equations. (English)Zbl 1350.34022

MSC:  34A37 34D10
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### Ulam stability of binary mix-sextic functional equation. (Chinese. English summary)Zbl 1363.39040

MSC:  39B82 39B52

### 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 quadratic functional equations in $$F$$-spaces. (English)Zbl 1347.39029

MSC:  39B82 39B52
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### On the Hyers-Ulam stability of first-order impulsive delay differential equations. (English)Zbl 1342.34100

MSC:  34K27 34K45
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### The stability of a connection on Hermitian vector bundles over a Riemannian manifold. (English)Zbl 1336.39018

MSC:  39B82 47B48 53C07
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