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Hsu, Leetsch C.
An estimation for the first exponential formula in the theory of semigroups of linear operations. (English). Czechoslovak Mathematical Journal, vol. 10 (1960), issue 3, pp. 323-328
MSC: 46.00 | MR 0119102 | Zbl 0096.32001 | DOI: 10.21136/CMJ.1960.100416
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[6] L. C. Hsu: A new type of polynomials approximating a continuous or integrable function. Studia Mathematica 18 (1959), 43-48. DOI 10.4064/sm-18-1-43-48 | MR 0102687 | Zbl 0085.05301
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