Hejhal, Dennis A. Universal covering maps for variable regions. (English) Zbl 0316.30009 Math. Z. 137, 7-20 (1974). MSC: 30C25 PDFBibTeX XMLCite \textit{D. A. Hejhal}, Math. Z. 137, 7--20 (1974; Zbl 0316.30009) Full Text: DOI EuDML
Hejhal, Dennis A. Linear extremal problems for analytic functions. (English) Zbl 0226.30019 Acta Math. 128, 91-122 (1972). MSC: 30C85 31A15 30F15 PDFBibTeX XMLCite \textit{D. A. Hejhal}, Acta Math. 128, 91--122 (1972; Zbl 0226.30019) Full Text: DOI
Hejhal, Dennis A. Classification theory for Hardy classes of analytic functions. (English) Zbl 0222.30025 Bull. Am. Math. Soc. 77, 767-771 (1971). MSC: 30F15 30D55 30F10 PDFBibTeX XMLCite \textit{D. A. Hejhal}, Bull. Am. Math. Soc. 77, 767--771 (1971; Zbl 0222.30025) Full Text: DOI