Kirk, W. A. Nearest and farthest points of closed sets in hyperbolic spaces. (English) Zbl 0753.46014 Constantin Carathéodory: an international tribute. Vol. I, 581-591 (1991). Reviewer: J.Górnicki (Rzeszów) MSC: 46B20 47H09 PDFBibTeX XMLCite \textit{W. A. Kirk}, in: The binomial theorem in the algebra \(A^+\). . 581--591 (1991; Zbl 0753.46014)
Hanson, D. L.; Kirk, W. A. The existence of equilateral metric quadruples. (English) Zbl 0176.51601 Simon Stevin 42 (1968/69), 112-122 (1969). PDFBibTeX XMLCite \textit{D. L. Hanson} and \textit{W. A. Kirk}, Simon Stevin 42, 112--122 (1969; Zbl 0176.51601)
Huff, B. W.; Kirk, W. A. A note on equilateral metric triples. (English) Zbl 0149.40004 Am. Math. Mon. 74, 288-290 (1967). PDFBibTeX XMLCite \textit{B. W. Huff} and \textit{W. A. Kirk}, Am. Math. Mon. 74, 288--290 (1967; Zbl 0149.40004) Full Text: DOI
Kirk, W. A. Congruence orders of complete and compact metric spaces. (English) Zbl 0156.43203 Simon Stevin 40, 3-6 (1966). PDFBibTeX XMLCite \textit{W. A. Kirk}, Simon Stevin 40, 3--6 (1966; Zbl 0156.43203)
Kirk, W. A. A theorem on local isometries. (English) Zbl 0145.19204 Proc. Am. Math. Soc. 17, 453-455 (1966). PDFBibTeX XMLCite \textit{W. A. Kirk}, Proc. Am. Math. Soc. 17, 453--455 (1966; Zbl 0145.19204) Full Text: DOI
Kirk, W. A. On curvature of a metric space at a point. (English) Zbl 0168.43402 Pac. J. Math. 14, 195-198 (1964). PDFBibTeX XMLCite \textit{W. A. Kirk}, Pac. J. Math. 14, 195--198 (1964; Zbl 0168.43402) Full Text: DOI
Kirk, W. A. On locally isometric mappings of a G-space on itself. (English) Zbl 0138.43201 Proc. Am. Math. Soc. 15, 584-586 (1964). PDFBibTeX XMLCite \textit{W. A. Kirk}, Proc. Am. Math. Soc. 15, 584--586 (1964; Zbl 0138.43201) Full Text: DOI
Kirk, W. A. Isometries in G-spaces. (English) Zbl 0136.19001 Duke Math. J. 31, 539-542 (1964). PDFBibTeX XMLCite \textit{W. A. Kirk}, Duke Math. J. 31, 539--542 (1964; Zbl 0136.19001) Full Text: DOI