Abstract
While colleagues at Stanford in the 1940s, Albert Schaeffer and Donald Spencer produced a series of papers on coefficient regions for schlicht (= univalent) functions, culminating in their well-known book (Schaeffer and Spencer, Coefficient Regions for Schlicht Functions, 1950). Although it appeared earlier, the paper (Schiffer et al., Duke Math. J., 16, 493–527, 1949) is actually a sequel to the book. Largely expository, it provides new insights into the description of coefficient regions as developed in Schaeffer and Spencer (Coefficient Regions for Schlicht Functions, 1950). In particular, it highlights a remarkable connection with Loewner’s theory (Math. Ann., 89, 103–121, 1923) and Schiffer’s paper (C. R. Acad. Sci. Paris, 221, 369–371, 1945).
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References
Peter L. Duren, Univalent Functions, Springer-Verlag, 1983.
Karl Löwner (Charles Loewner), Untersuchungen über schlichte konforme Abbildungen des Einheitskreises, I , Math. Ann. 89 (1923), 103–121.
A. C. Schaeffer and D. C. Spencer, A variational method in conformal mapping, Duke Math. J. 14 (1947), 949–966.
A. C. Schaeffer and D. C. Spencer, Coefficient Regions for Schlicht Functions, American Mathematical Society, 1950.
A. C. Schaeffer and D. C. Spencer, Models illustrating the third coefficient region for schlicht functions, Scripta Math. 16 (1950), 67–71 (2 plates). Peter Duren
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Duren, P. (2013). [28] (with A. C. Schaeffer and D. C. Spencer) The coefficient regions of schlicht functions. In: Duren, P., Zalcman, L. (eds) Menahem Max Schiffer: Selected Papers Volume 1. Contemporary Mathematicians. Birkhäuser, New York, NY. https://doi.org/10.1007/978-0-8176-8085-5_25
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DOI: https://doi.org/10.1007/978-0-8176-8085-5_25
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