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Found 359 Documents (Results 1–100)

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Solutions and stability of some functional equations on semigroups. (English) Zbl 1447.39017

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. 167-198 (2019).
MSC:  39B82 39B52
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On the best Hyers-Ulam stability constants for some equations and operators. (English) Zbl 1378.39019

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). 517-528 (2016).
MSC:  39B82 39B52
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Functional equations and Nemytskij operator. (English) Zbl 1339.47092

Wituła, Roman (ed.) et al., Monograph on the occasion of 100th birthday anniversary of Zygmunt Zahorski. Gliwice: Wydawnictwo Politechniki Śląskiej (ISBN 978-83-7880-206-8/pbk). Monografia (Gliwice) 545, 239-258 (2015).
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Nemytskij operator, Rådström embedding and set-valued functions. (English) Zbl 1343.47063

Wituła, Roman (ed.) et al., Monograph on the occasion of 100th birthday anniversary of Zygmunt Zahorski. Gliwice: Wydawnictwo Politechniki Śląskiej (ISBN 978-83-7880-206-8/pbk). Monografia (Gliwice) 545, 219-238 (2015).
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A fixed point technique for investigating the stability of \((\alpha, \beta, \gamma)\)-derivations on Lie \(C^\ast\)-algebras. (English) Zbl 1261.39032

MSC:  39B82 39B52 46L57
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