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Bulletin of the American Mathematical Society

Published by the American Mathematical Society, the Bulletin of the American Mathematical Society (BULL) is devoted to research articles of the highest quality in all areas of pure and applied mathematics.

ISSN 1088-9485 (online) ISSN 0273-0979 (print)

The 2020 MCQ for Bulletin of the American Mathematical Society is 0.47.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

An approximation theorem for semi-groups of operators
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by P. L. Butzer and H. G. Tillmann PDF
Bull. Amer. Math. Soc. 66 (1960), 191-193
References
  • 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 94720, DOI 10.1007/BF01343754
  • Einar Hille, Functional Analysis and Semi-Groups, American Mathematical Society Colloquium Publications, Vol. 31, American Mathematical Society, New York, 1948. MR 0025077
  • 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
    • 4. K. de Leeuw, On the adjoint semi-group and some problems in the theory of approximation, Math. Z. vol. 73 (1960).
Additional Information
  • Journal: Bull. Amer. Math. Soc. 66 (1960), 191-193
  • DOI: https://doi.org/10.1090/S0002-9904-1960-10427-2
  • MathSciNet review: 0113148