References
- Arrangements and spreads, Regional Conference Series in Mathematics v.10 B. Grunbaum
- ARS combinatora v.40 On the face vectors of arrangements of curves D.Y. Jeong
- private communication J. Malkevitch
B. Gr nbaum defined the arrangements of simple curves and got many combinatorial properties. In this paper, we studied the existence of (n,r,t,k)-arrangements and the existence of digon-free(n,r,t,k)-arrangements, which is a generalized version of Gr nbaum`s definition.