Harrold, O. G. A remarkable simple closed curve: revisited. (English) Zbl 0477.57007 Proc. Am. Math. Soc. 81, 133-136 (1981). MSC: 57M30 PDFBibTeX XMLCite \textit{O. G. Harrold}, Proc. Am. Math. Soc. 81, 133--136 (1981; Zbl 0477.57007) Full Text: DOI
Harrold, O. G. jun. A class of wild closed curves that span orientable surfaces. (English) Zbl 0257.55003 Proc. Am. Math. Soc. 38, 640-642 (1973). MSC: 57M30 57N10 PDFBibTeX XMLCite \textit{O. G. Harrold jun.}, Proc. Am. Math. Soc. 38, 640--642 (1973; Zbl 0257.55003) Full Text: DOI
Harrold, O. G.; Seebeck, C. L. Locally weakly flat spaces. (English) Zbl 0176.21901 Trans. Am. Math. Soc. 138, 407-414 (1969). PDFBibTeX XMLCite \textit{O. G. Harrold} and \textit{C. L. Seebeck}, Trans. Am. Math. Soc. 138, 407--414 (1969; Zbl 0176.21901) Full Text: DOI
Harrold, O. G. jun. A characterization of locally Euclidean spaces. (English) Zbl 0137.16505 Trans. Am. Math. Soc. 118, 1-16 (1965). PDFBibTeX XMLCite \textit{O. G. Harrold jun.}, Trans. Am. Math. Soc. 118, 1--16 (1965; Zbl 0137.16505) Full Text: DOI
Harrold, O. G. jun. Locally peripherally Euclidean spaces are locally Euclidean. (English) Zbl 0091.36301 Bull. Am. Math. Soc. 66, 194-197 (1960). PDFBibTeX XMLCite \textit{O. G. Harrold jun.}, Bull. Am. Math. Soc. 66, 194--197 (1960; Zbl 0091.36301) Full Text: DOI
Harrold, O. G. jun. A sufficient condition that a monotone image of the three-sphere be a topological three-sphere. (English) Zbl 0092.39605 Proc. Am. Math. Soc. 9, 846-850 (1959). PDFBibTeX XMLCite \textit{O. G. Harrold jun.}, Proc. Am. Math. Soc. 9, 846--850 (1959; Zbl 0092.39605) Full Text: DOI
Harrold, O. G. jun. Locally tame curves and surfaces in three-dimensional manifolds. (English) Zbl 0077.36104 Bull. Am. Math. Soc. 63, 293-305 (1957). PDFBibTeX XMLCite \textit{O. G. Harrold jun.}, Bull. Am. Math. Soc. 63, 293--305 (1957; Zbl 0077.36104) Full Text: DOI
Harrold, O. G. jun.; Griffith, H. C.; Posey, E. E. A characterization of tame curves in three spaces. (English) Zbl 0065.16701 Trans. Am. Math. Soc. 79, 12-34 (1955). PDFBibTeX XMLCite \textit{O. G. Harrold jun.} et al., Trans. Am. Math. Soc. 79, 12--34 (1955; Zbl 0065.16701) Full Text: DOI