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Found 2 Documents (Results 1–2)

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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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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