No CrossRef data available.
Published online by Cambridge University Press: 24 October 2008
1. In a note in these Proceedings, Mr S. Verblunsky proves the following result:
Theorem A. Let C be a continuous arc joining the points (x1, y0) and (x2, y0), where x2 > x1. Suppose that C does not cross the line y = y0. Then, given any positive h < x2 − x1, there is α yh such that some two points (ξ1, yh), (ξ2, yh), in which y = yh cuts C, satisfy the relation ξ2 − ξ1 = h.
* Proc. Camb. Phil. Soc. 26 (1930), 31.Google Scholar
* By the segment pq is meant the set of points between p and q, excluding the points p and q themselves.
† Mullikin, Anna M., ‘Certain theorems relating to plane connected point sets’, Trans. Amer. Math. Soc. vol. 24 (1922), 157, Theorem 2.CrossRefGoogle Scholar