A crofton style formula and its application on the unit sphere $ *$

  • Y. D. Chai (Department of Mathematics, Sung Kyun Kwan University, Suwon 440-746) ;
  • Lee, Young-Soo (Department of Mathematics, Sung Kyun Kwan University, Suwon 440-746)
  • Published : 1996.11.01

Abstract

Crofton's formula on Euclidean plane $E^2$ states: Let $\Gamma$ be a rectifiable curve of length L and let G be a straight line. Then $$ \int_{G \cap \Gamma \neq \phi} n dG = 2L $$ where n is the number of the intersection points of G with the curve $\Gamma$.

Keywords