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Advances in Mathematical Physics
Volume 2015 (2015), Article ID 397126, 6 pages
http://dx.doi.org/10.1155/2015/397126
Research Article

The Relationship between Focal Surfaces and Surfaces at a Constant Distance from the Edge of Regression on a Surface

Department of Mathematics, Faculty of Science, Ataturk University, 25240 Erzurum, Turkey

Received 7 July 2014; Accepted 8 September 2014

Academic Editor: John D. Clayton

Copyright © 2015 Semra Yurttancikmaz and Omer Tarakci. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We investigate the relationship between focal surfaces and surfaces at a constant distance from the edge of regression on a surface. We show that focal surfaces F1 and F2 of the surface M can be obtained by means of some special surfaces at a constant distance from the edge of regression on the surface M.