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Bulletin of the American Mathematical Society
Bulletin of the American Mathematical Society
ISSN 1088-9485(online) ISSN 0273-0979(print)

 

An approximation theorem for semi-groups of operators


Authors: P. L. Butzer and H. G. Tillmann
Journal: Bull. Amer. Math. Soc. 66 (1960), 191-193
MathSciNet review: 0113148
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References | Additional Information

References [Enhancements On Off] (What's this?)

  • 1. P. L. Butzer, Über den Grad der Approximation des Identitätsoperators durch Halbgruppen von linearen Operatoren und Anwendungen auf die Theorie der singulären Integrale, Math. Ann. 133 (1957), 410–425 (German). MR 0094720 (20 #1232)
  • 2. Einar Hille, Functional Analysis and Semi-Groups, American Mathematical Society Colloquium Publications, vol. 31, American Mathematical Society, New York, 1948. MR 0025077 (9,594b)
  • 3. Einar Hille and Ralph S. Phillips, Functional analysis and semi-groups, American Mathematical Society Colloquium Publications, vol. 31, American Mathematical Society, Providence, R. I., 1957. rev. ed. MR 0089373 (19,664d)
  • 4. K. de Leeuw, On the adjoint semi-group and some problems in the theory of approximation, Math. Z. vol. 73 (1960).


Additional Information

DOI: http://dx.doi.org/10.1090/S0002-9904-1960-10427-2
PII: S 0002-9904(1960)10427-2