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Found 593 Documents (Results 1–100)

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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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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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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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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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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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